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1,555 Chemical Products Trademarks (Class 1) starting with Q found

75285206
Dead/Abandoned

on 17 Feb 1998

QUALITOR

Queeny Chemical Company

75285206 · 02 May 1997

001

023

...

textile rugs, carpets and mats,textile rugs, carpets and mats,chemical...

75271017
Dead/Cancelled

on 07 Apr 2007

Q

QUADRANT DRUG DELIVERY LIMITED

75271017 · 04 Apr 1997

001

005

full line of pharmaceuticals, namely, medical, medicinal and veterinar...

75261771
Live/Registered

on 07 May 2018

QPAC

EMPOWER MATERIALS INC.

75261771 · 21 Mar 1997

07 Jul 2028

001

poly [ alkylene carbonate resins, blends thereof, and blends thereof w...

75246224
Dead/Cancelled

on 09 Jun 2007

QUALITY GUARANTEE

Fleming Companies, Inc.

75246224 · 24 Feb 1997

001

003

...

unexposed camera film,electric light bulbs, night lights and lights fo...

75239568
Dead/Abandoned

on 28 Oct 1997

QUANTIGEN

PharMingen

75239568 · 10 Feb 1997

001

biochemical reagents for the treatment of antigens,biochemical reagent...

75201556
Dead/Abandoned

on 23 Feb 1998

QN

QNI Limited

75201556 · 21 Nov 1996

001

006

The mark consists of the stylized letters "QN" and a stylized map of A...

75196582
Dead/Abandoned

on 24 Mar 1999

QUICKSTIX

STRATEGIC DIAGNOSTICS INC.

75196582 · 12 Nov 1996

001

QUICK STICKS,QUICK STICKS,testing kits comprising chemical reagents an...

75172055
Dead/Abandoned

on 18 May 1999

QUALIPLEX

Chiron Corporation

75172055 · 26 Sep 1996

001

005

diagnostic reagents, namely, kits composed primarily of reagents for i...

75162122
Dead/Abandoned

on 27 Oct 1997

QUICK THAW

Rockingham Cooperative, Inc.

75162122 · 06 Sep 1996

001

chemical preparations for melting snow and ice for commercial and resi...

75136769
Dead/Cancelled

on 13 Jun 2008

QUICK-TYPE

Lifecodes Corporation

75136769 · 18 Jul 1996

001

chemical and biological reagents and solutions, namely, nucleic acids ...

75115316
Dead/Abandoned

on 20 Jun 1997

QUELANT

Nutramax Laboratories, Inc.

75115316 · 06 Jun 1996

001

corrects mineral deficiencies among plants, fruits, vegetables and tur...

75101230
Dead/Abandoned

on 10 Jan 1997

QUICK-AROM

Wolff & Olsen

75101230 · 09 May 1996

001

flavored gumming agent for the pre-treatment of centers in the product...

75085406
Live/Registered

on 12 Dec 2017

QUANTA LITE

INOVA DIAGNOSTICS, INC.

75085406 · 01 Apr 1996

25 Nov 2027

001

005

...

In the statement, column 1, line 3, should be deleted and "9900 Old Gr...

74711376
Dead/Cancelled

on 02 Jun 2007

QUARRA

Poly Chem Corp.

74711376 · 04 Aug 1995

001

synthetic resins for use in the manufacture of polyurethane,synthetic ...

74707625
Dead/Cancelled

on 20 Dec 2003

QUALITY BIOLOGICAL, INC.

Quality Biological, Inc.

74707625 · 28 Jul 1995

001

005

...

reagents for scientific or medical research use; biochemicals, namely,...

74691237
Dead/Abandoned

on 31 Jul 1996

Q

ULANO CORPORATION

74691237 · 20 Jun 1995

001

photopolymer emulsions for screenprinting and photographic direct film...

74663144
Live/Registered

on 12 Nov 2016

QUANTUM PREP

BIO-RAD LABORATORIES, INC.

74663144 · 18 Apr 1995

05 Mar 2026

001

DNA purification kits comprised of reagents, cell resuspension solutio...

74654334
Dead/Abandoned

on 03 Apr 2000

QUANTISON

Andaris Limited

74654334 · 31 Mar 1995

001

005

microspheres containing imaging reagents; microspheres containing diag...

74652516
Dead/Abandoned

on 25 Nov 1999

Q QUAKER STATE 4X4 THE INTELLIGENT CHOICE FOR HARD WORKING VEHICLES

QUAKER STATE CORPORATION

74652516 · 28 Mar 1995

001

003

...

air freshener,air freshener,gear oils, vehicular greases, power steeri...

74650761
Live/Registered

on 25 May 2016

QR

PRECISION LABORATORIES, INC.

74650761 · 23 Mar 1995

19 Mar 2026

001

reactive test strips for determining level of sanitizing agent,reactiv...

74634951
Dead/Abandoned

on 22 Jul 1996

QUICK-DRAW

Athea Laboratories, Inc.

74634951 · 16 Feb 1995

001

aerosol tear gas,QUICK DRAW,QUICK DRAW,aerosol tear gas

74573876
Live/Registered

on 24 Oct 2017

QUINTONE

ZEON CORPORATION

74573876 · 15 Sep 1994

18 Nov 2027

001

017

synthetic resin in the form of solid, powder and granule for industria...

74561878
Live/Registered

on 22 Feb 2018

QUALITY CHOICE

CHAIN DRUG MARKETING ASSOCIATION, INC.

74561878 · 17 Aug 1994

17 Mar 2028

001

003

...

batteries,batteries,nail buffers, nail clippers, nail files, razors, r...

74561866
Dead/Cancelled

on 11 Nov 2006

QUAD CURE

Symons Corporation

74561866 · 15 Aug 1994

001

liquid chemical composition merchandised in drums and for use in curin...

74568847
Live/Registered

on 29 Jun 2016

QUANTI-CULT PLUS

REMEL, INC.

74568847 · 07 Jul 1994

16 Apr 2026

001

005

preserved microorganism preparation for clinical or medical laboratory...

74527263
Dead/Cancelled

on 18 Apr 2009

QMP

PHERO TECH INC.

74527263 · 23 May 1994

001

pollination enhancing pheromone sold as an ingredient of a chemical co...

74499385
Dead/Abandoned

on 21 Nov 1996

QN

QUEENSLAND NICKEL PTY. LTD.

74499385 · 14 Mar 1994

001

006

The mark consists of the stylized letters "QN" and a stylized map of A...

74484745
Dead/Abandoned

on 15 Aug 1995

QUAFLUID

QUAKER CHEMICAL CORPORATION

74484745 · 31 Jan 1994

001

mineral oil based hydraulic fluid,QUA-FLUID,QUA-FLUID,mineral oil base...

74441019
Dead/Cancelled

on 12 Feb 2016

Q-ETCH

Printing Developments, Inc.

74441019 · 27 Sep 1993

001

etching chemicals for use in the printing industry,etching chemicals f...

74378269
Dead/Cancelled

on 20 Jul 2002

QUANTIPLEX

Chiron Corporation

74378269 · 09 Apr 1993

001

005

diagnostic reagents; namely, kits composed primarily of chemical reage...

74361760
Live/Registered

on 07 Nov 2014

QIAAMP

QIAGEN GMBH

74361760 · 24 Feb 1993

01 May 2025

001

chemical products for commercial and scientific purposes; namely, chem...

74363181
Dead/Cancelled

on 03 Apr 2020

QUICK QUART

ASHLAND INC.

74363181 · 23 Feb 1993

001

antifreeze coolant,"QUART","QUART",antifreeze coolant

74352580
Live/Registered

on 02 Apr 2015

QC WINDOWS

BANGS LABORATORIES, INC.

74352580 · 26 Jan 1993

28 Mar 2025

001

005

"QC",microbeads, and instructions sold therewith as a unit, for standa...

74330205
Dead/Cancelled

on 17 Jul 2004

QESTRON

MONTECH USA INC.

74330205 · 10 Nov 1992

001

modified olefin polymers in particulate or pellet form for general ind...

74308509
Dead/Cancelled

on 03 Jul 2000

QUIK PATCH

Iverson, Thomas

74308509 · 28 Aug 1992

001

adhesive for clothing, leather, canvas, tarps and wood crafts,QUICK PA...

74299360
Dead/Cancelled

on 29 Sep 2023

QPX

ULANO CORPORATION

74299360 · 30 Jul 1992

001

photopolymer emulsion for screen printing

74296451
Live/Registered

on 07 Nov 2014

QIAPREP

QIAGEN GMBH

74296451 · 21 Jul 1992

29 May 2025

001

chromatographic material; namely, chromatographic chemicals, liquids, ...

74296452
Dead/Cancelled

on 15 Mar 2003

QIASCREEN

QIAGEN GMBH

74296452 · 21 Jul 1992

001

chemical products for commercial and scientific purposes, especially f...

74267047
Dead/Cancelled

on 19 Feb 2014

QTX

Ulano Corporation

74267047 · 20 Apr 1992

001

chemical preparations; namely, photopolymer emulsions for screenprinti...

74239169
Dead/Abandoned

on 30 Oct 1992

QUICK SPLIT

MILLER, RICHARD N.

74239169 · 21 Jan 1992

001

water and solvent based cleaners,water and solvent based cleaners

74229134
Dead/Cancelled

on 07 Jun 2003

QUAL FLO

Qualcepts Nutrients

74229134 · 11 Dec 1991

001

QUALITY FLOW,powdered cellulose used as an emulsifier, stabilizer, and...

74205608
Dead/Cancelled

on 06 Sep 2003

QBZ

Quackenbush Company

74205608 · 23 Sep 1991

001

particulate ceramic media for use in mills for mixing and dispersing p...

74191182
Dead/Abandoned

on 29 Jan 1993

Q-ETCH

Printing Developments, Inc.

74191182 · 05 Aug 1991

001

etching chemicals for use in the printing industry,etching chemicals f...

74188781
Live/Registered

on 23 Sep 2016

QUANTASE

BIO-RAD LABORATORIES EUROPE LIMITED

74188781 · 26 Jul 1991

06 Feb 2026

001

enzyme-based reagents for in-vitro use in biological and chemical assa...

74184629
Dead/Abandoned

on 12 Aug 1995

QUALITY LEADER

CAL GROWERS CORPORATION

74184629 · 12 Jul 1991

001

003

...

plastic utensils; namely, forks, spoons and knives,packaged entrees co...

74145199
Dead/Cancelled

on 20 Jul 2002

QUALITY FROM THE GROUND UP

American Colloid Company

74145199 · 06 Mar 1991

001

bentonite and bentonite composite products for use in the industrial, ...

74064966
Dead/Cancelled

on 06 May 2022

QUICK GEL

HENKEL IP & HOLDING GMBH

74064966 · 01 Jun 1990

001

"GEL",general purpose adhesive containing cyanoacrylate

74052451
Dead/Cancelled

on 22 Oct 2021

QB

Quality Biological, Inc.

74052451 · 24 Apr 1990

001

culture media, reagents for biological research and chemicals for biol...

74036499
Dead/Cancelled

on 26 May 1997

QUICK-TURN

Thomson Saginaw Ball Screw Company, Inc.

74036499 · 09 Mar 1990

001

repair kits for the repair of ball screws comprising degreasing solven...

74023367
Dead/Cancelled

on 07 Dec 1998

QUANTAFLUOR

KALLESTAD DIAGNOSTICS, INC.

74023367 · 29 Jan 1990

001

005

kits for use in immunofluoressence assays for medical use consisting p...

74023368
Dead/Cancelled

on 03 Aug 2002

QUANTICLONE

Sanofi Diagnostics Pasteur, Inc.

74023368 · 29 Jan 1990

001

005

chemical reagents and isotopes for use in radioimmunoassays for scient...

74018345
Dead/Cancelled

on 27 Oct 2001

QUADRAPAK

Allied Diagnostic Imaging Resources, Inc.

74018345 · 12 Jan 1990

001

Developer replenisher concentrate for automatic processors of medical ...

74009090
Dead/Abandoned

on 25 Sep 1990

QCM

QCM COMPANY

74009090 · 08 Dec 1989

001

PLASTIC COATINGS AND ADHESIVES,PLASTIC COATINGS AND ADHESIVES

74002146
Live/Registered

on 27 Dec 2019

QUANTIKINE

RESEARCH & DIAGNOSTIC SYSTEMS, INC.

74002146 · 16 Nov 1989

24 Jul 2030

001

QUANTITY-KINE,IN VITRO IMMUNOASSAY KITS FOR RESEARCH LABORATORY USE

74002529
Dead/Cancelled

on 15 Dec 2001

QUASPERSE 210

QUAKER CHEMICAL CORPORATION

74002529 · 16 Nov 1989

001

QUA-SPERSE 210,CHEMICAL SUBSTANCES USED IN INDUSTRY NAMELY, PITCH DISP...

74000534
Dead/Cancelled

on 15 Dec 2001

QUASPERSE 108C

QUAKER CHEMICAL CORPORATION

74000534 · 16 Nov 1989

001

THE DRAWING IS AMENDED TO APPEAR AS FOLLOWS: QUASPERSE 108C,THE DRAWI...

73826335
Live/Registered

on 22 Mar 2021

QIAGEN

QIAGEN GMBH

73826335 · 19 Sep 1989

08 Jan 2031

001

005

...

LABORATORY EQUIPMENT, NAMELY, TIPS, PACKS, SYRINGES, TUBES, HOLDING RA...

73819139
Dead/Cancelled

on 29 Jan 2016

QUALITY THE ACTIVE INGREDIENT

UNIROYAL CHEMICAL COMPANY, INC.

73819139 · 14 Aug 1989

001

002

ANTIOXIDANTS, ANTIOZONANTS, SYNTHETIC RESINS, LIQUID POLYMERS, PRE-POL...

73809590
Dead/Abandoned

on 11 May 1990

QCP

ABBOTT LABORATORIES

73809590 · 28 Jun 1989

001

041

SERVICE TO VERIFY PROFICIENCY OF LABORATORY TESTING METHODS,TEST SAMPL...

73787914
Dead/Cancelled

on 23 Dec 2000

QPLUS

E. I. DU PONT DE NEMOURS AND COMPANY

73787914 · 20 Mar 1989

001

Q-PLUS,THICK FILM COMPOSITIONS FOR USE IN THE MANUFACTURE OF MICROCIRC...

73786113
Dead/Abandoned

on 19 Jan 1990

QUALITY COTE

MAIN TAPE COMPANY, INC.

73786113 · 13 Mar 1989

001

QC; QUALITY COAT,QC; QUALITY COAT,ADHESIVE WRAPPING TO PROTECT FINISHE...

73785234
Dead/Cancelled

on 02 Apr 1996

QUALITY

QUALITY SALES CORPORATION

73785234 · 06 Mar 1989

001

ORGANIC SOIL AMENDMENTS FOR HOME AND AGRICULTURAL USAGE,ORGANIC SOIL A...

73766147
Dead/Cancelled

on 05 Aug 1996

QUICK BREAK

B. F. GOODRICH COMPANY, THE

73766147 · 28 Nov 1988

001

WATER SOLUBLE AND WATER SWELLABLE SYNTHETIC POLYMERIC MATERIALS TO BE ...

73746612
Dead/Abandoned

on 04 Dec 1989

Q8 OIL

Q8 OIL COMPANY

73746612 · 17 Aug 1988

001

004

DRILLING FLUID ADDITIVE,Q 8,DRILLING FLUID ADDITIVE,DRILLING FLUID ADD...

73709814
Dead/Cancelled

on 16 May 2009

QUANTUM MATERIALS

QUANTUM MATERIALS, INC.

73709814 · 08 Feb 1988

001

THICK FILM ELECTRONIC MATERIALS, NAMELY, SEMICONDUCTOR DIE ATTACHMENT ...

73689787
Live/Registered

on 02 May 2018

QUANTUM COMPOSITES

QUANTUM COMPOSITES, INC.

73689787 · 15 Oct 1987

31 May 2028

001

"COMPOSITES",REINFORCED POLYMER MOLDING COMPOUNDS SOLD AS RAW MATERIAL...

73665960
Dead/Cancelled

on 26 Sep 1994

QICTAC

NOR-COTE CHEMICAL CO., INC.

73665960 · 11 Jun 1987

001

QUICK TACK,ADHESIVE FOR NONPERMANENT BONDING OF PAPER TO ANY OTHER SUB...

73642554
Dead/Cancelled

on 10 Oct 1994

QLF

BOC GROUP, INC., THE

73642554 · 02 Feb 1987

001

PROTECTIVE COATINGS FOR GLASS USED IN THE ARCHITECTURAL AND AUTOMOTIVE...

73642604
Dead/Cancelled

on 28 Feb 1994

QUACKMASTER

MONSANTO COMPANY

73642604 · 02 Feb 1987

001

QUACK MASTER,SURFACTANT FOR USE WITH HERBICIDES,SURFACTANT FOR USE WIT...

73635327
Dead/Cancelled

on 06 Jun 2008

QO CHEMICALS

QO CHEMICALS, INC.

73635327 · 15 Dec 1986

001

"CHEMICALS",FURAN CHEMICALS AND DERIVATIVES THEREOF FOR USE IN THE IND...

73601336
Live/Registered

on 28 Apr 2016

QUANTUM

GOLD EAGLE CO.

73601336 · 29 May 1986

30 Dec 2026

001

FUEL ADDITIVE FOR INTERNAL COMBUSTION ENGINES

73599576
Dead/Abandoned

on 07 Jan 1987

QO

QO CHEMICALS, INC.

73599576 · 19 May 1986

001

FURAN CHEMICALS AND DERIVATIVES THEREOF FOR USE IN THE INDUSTRIAL ARTS...

73585741
Dead/Cancelled

on 04 Aug 2007

QUIDEL Q

QUIDEL CORPORATION

73585741 · 03 Mar 1986

001

MEDICAL APPARATUS, NAMELY PREGNANCY TESTING KITS, COMPRISED ESSENTIALL...

73580528
Dead/Cancelled

on 04 May 1993

QUENCHOPHOR

BAYER AKTIENGESELLSCHAFT

73580528 · 31 Jan 1986

001

INDUSTRIAL CHEMICALS - NAMELY, PAPER DYEING AUXILIARY CHEMICALS FOR US...

73572706
Dead/Cancelled

on 13 Sep 2008

QUANTEX

QUANTEX CORPORATION

73572706 · 10 Dec 1985

001

PHOTOLUMINESCENT AND ELECTROLUMINESCENT MATERIALS IN THE FORM OF POWDE...

73554193
Dead/Abandoned

on 03 Jun 1986

QUICK START

DPL CULTURE SERVICE

73554193 · 19 Aug 1985

001

DAIRY STARTER CULTURES IN BOTH FREEZE-DRIED, FRESH, AND FROZEN FORMS,D...

73531181
Dead/Cancelled

on 02 Sep 2006

Q

QUIDEL

73531181 · 08 Apr 1985

001

THE MARK COMPRISES A STYLIZED LETTER "Q".,THE MARK COMPRISES A STYLIZE...

73504991
Dead/Abandoned

on 16 Jan 1986

QUEST

QUIDEL

73504991 · 22 Oct 1984

001

DIAGNOSTIC TEST KITS CONSISTING PRIMARILY OF DIPSTICKS TO WHICH ANTIBO...

73504963
Dead/Abandoned

on 16 Jan 1986

QUEST

QUIDEL

73504963 · 22 Oct 1984

001

THE MARK COMPRISES THE WORD "QUEST" WITH A STYLIZED "Q".,DIAGNOSTIC TE...

73457676
Dead/Cancelled

on 01 Apr 1991

QUICK-BLOT

Schleicher & Schuell GmbH

73457676 · 19 Dec 1983

001

Kits, Comprising Polymer Membrane Material and Synergistic Auxiliary C...

73451980
Dead/Cancelled

on 24 Oct 1991

QUIK-THIN

NL Industries, Inc.

73451980 · 09 Nov 1983

001

Mud Thinner for Seismic and Water Well Drilling,Mud Thinner for Seismi...

73438958
Dead/Cancelled

on 16 Mar 1990

QUALITY FARM BUREAU PRODUCTS

AGWAY INC.

73438958 · 12 Aug 1983

001

031

IN THE STATEMENT, COLUMN 1, LINE 1, "(NEW YORK CORPORATION)" SHOULD BE...

73420989
Dead/Cancelled

on 10 Sep 1990

QUICK-START

Holyoak; H. K.

73420989 · 11 Apr 1983

001

Liquid Fertilizer for Fish Ponds,Liquid Fertilizer for Fish Ponds

73403530
Dead/Abandoned

on 07 Mar 1985

Q-SIRFRAC

R.E. DAVIS CHEMICAL CORPORATION

73403530 · 22 Nov 1982

001

CHEMICAL COMPOSITION FOR SECONDARY OIL RECOVERY,Q SIRFRAC,Q SIRFRAC,CH...

73394791
Live/Registered

on 05 Jan 2015

QUILL

QUILL LLC

73394791 · 30 Sep 1982

01 Jan 2025

001

009

...

[ Copier Toner; Toner and Developer for Photocopying Machines; and Ele...

73392455
Dead/Abandoned

on 08 Feb 1984

QCL-1000

M.A. BIOPRODUCTS

73392455 · 29 Sep 1982

001

A QUANTITATIVE CHROMOGENIC LIMULUS AMEBOCYTE LYSATE ASSAY,A QUANTITATI...

73379464
Dead/Cancelled

on 10 Jul 2004

QUINOREX

Nippon Shokubai Kagaku Kogyo Co., Ltd.

73379464 · 11 Aug 1982

001

Desulfulization Catalyst for Exhaust Gas from Iron and Steel Plants,De...

73362774
Dead/Abandoned

on 02 Aug 1984

QUICK-SOL BRIQUETTES

SHIELDALLOY CORPORATION

73362774 · 03 May 1982

001

VARIOUS MAJOR ELEMENTS USED AS ADDITIVESTO ALUMINUM ALLOYS,VARIOUS MAJ...

73361182
Dead/Abandoned

on 28 Aug 1984

QUANTITATE

BECKMAN INSTRUMENTS, INC.

73361182 · 23 Apr 1982

001

LIQUID ENZYME CONTROL SERUM,LIQUID ENZYME CONTROL SERUM

73353996
Live/Registered

on 29 Jun 2023

QUINNESEC

BILLERUD U.S. PRODUCTION HOLDING LLC

73353996 · 11 Mar 1982

29 Mar 2033

001

Wood Pulp

73350122
Dead/Abandoned

on 13 Jul 1983

QROME

INTERNATIONAL MATERIALS RESEARCH, INC.

73350122 · 16 Feb 1982

001

CHROMIUM PHOTOGRAPHIC MASK BLANKS,CHROMIUM PHOTOGRAPHIC MASK BLANKS

73328476
Dead/Cancelled

on 14 Apr 1989

QUALIDATA

R.N.A. Medical Corp.

73328476 · 17 Sep 1981

001

Aqueous Blood Gas Control Kit Comprising Ampules for Blood/Gas Analyzi...

73300181
Dead/Cancelled

on 06 Mar 2004

QUALITY PAK

Domtar Inc.

73300181 · 09 Mar 1981

001

Salt for Use as a Water Conditioning Agent,Salt for Use as a Water Con...

73285460
Dead/Abandoned

on 05 Mar 1984

QUICKMETAL

LOCTITE CORPORATION

73285460 · 10 Nov 1980

001

ANAEROBIC ADHESIVE/SEALANT HAVING METALLIC APPEARANCE,ANAEROBIC ADHESI...

73266548
Dead/Cancelled

on 24 Jun 1988

QUICK START

Western Litho Plate & Supply Co.

73266548 · 16 Jun 1980

001

Lithographic Plate Finisher,Lithographic Plate Finisher

73263715
Dead/Cancelled

on 05 Aug 2022

Q-X

Champion Products, Inc.

73263715 · 27 May 1980

001

QX,Additive for Motor Oil and Gasoline

73226936
Dead/Cancelled

on 26 Jan 1988

QIK JOE

Milazzo; Samuel J.

73226936 · 10 Aug 1979

001

004

Instant Starting Charcoal Briquets and Cannel Coal,QUICK JOE,Ice Melti...

73159514
Dead/Cancelled

on 15 Oct 2021

QC

QUAKER CITY, INC.

73159514 · 17 Feb 1978

001

INDUSTRIAL CHEMICALS, EXCLUDING THOSE FOR USE IN OIL AND/OR GAS DRILLI...

73151523
Dead/Expired

on 20 Sep 1999

QC-STIX

MILES LABORATORIES, INC.

73151523 · 09 Dec 1977

001

QC STICK,TEST CONTROL STRIPS FOR ANALYSES OF URINE,QC STICK,TEST CONTR...

73143086
Live/Registered

on 14 Jan 2020

QUALICHECK

DANAHER MEDICAL APS

73143086 · 29 Sep 1977

05 Jun 2029

001

CHEMICAL REFERENCE LIQUIDS FOR USE IN QUALITY CONTROL AND CALIBRATION ...