Granted Patent
Utility
US 5,013,783 · App. 07/536,323
Heat-stable rubber compositions based on hydrogenated nitrile rubber
Inventors:
Joachim Thormer, Ernst Rohde, Zsolt Szentivanyi
Patented Case
View Patent ↗
Granted: May 7, 1991
Filed: Jun 11, 1990
Inventors
Joachim Thormer
Ernst Rohde
Zsolt Szentivanyi
Assignee (at issue)
Bayer Aktiengesellschaft
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.