Granted Patent
Utility
US 6,451,902 · App. 09/813,195
Nitrile polymer vulcanizate and process for the production thereof
Inventor:
Ezio Campomizzi
Patented Case
View Patent ↗
Granted: Sep 17, 2002
Filed: Mar 20, 2001
Inventor
Ezio Campomizzi
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.