Granted Patent
Utility
US 6,214,922 · App. 09/261,541
Nitrile polymer vulcanizate and process for the production thereof
Inventor:
Ezio Campomizzi
Patented Case
View Patent ↗
Granted: Apr 10, 2001
Filed: Mar 3, 1999
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.