Granted Patent
Utility
US 5,342,900 · App. 07/937,109
Process for the preparation of diene rubber vulcanizates
Inventors:
Jurgen Wolpers, Dieter Zerpner, Karl-Heinz Nordsiek
Patented Case
View Patent ↗
Granted: Aug 30, 1994
Filed: Aug 31, 1992
Inventors
Jurgen Wolpers
Dieter Zerpner
Karl-Heinz Nordsiek
Assignee (at issue)
Huls 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.