| TUBESEAL PITTSBURGH-DES MOINES STEEL COMPANY
72082767 06 Oct 1959 | on 18 Sep 2002 | FLOATING ROOF APPARATUS TO BE ASSEMBLED IN THE FIELD INTO OIL STORAGE ... Class 002 FLOATING ROOF APPARATUS TO BE ASSEMBLED IN THE FIELD INTO OIL STORAGE TANKS | | | TULIP TANK PITTSBURGH-DES MOINES STEEL COMPANY
72289332 22 Jan 1968 | on 03 Nov 1992 | ELEVATED STORAGE TANKS,ELEVATED STORAGE TANKS Class 002 APPLICANT DISCLAIMS ANY EXCLUSIVE RIGHT TO THE USE OF THE WORD "TANK," EXCEPT WHEN USED AS A COMPONENT OF THE MARK. | | | WEATHERSHIELD PITTSBURGH-DES MOINES STEEL COMPANY
72111757 12 Jan 1961 | on 01 Oct 1987 | FLOATING ROOF APPARATUS TO BE ASSEMBLED IN THE FIELD INTO OIL STORAGE ... Class 002 FLOATING ROOF APPARATUS TO BE ASSEMBLED IN THE FIELD INTO OIL STORAGE TANKS | |