Granted Patent
Utility
US 5,691,413 · App. 08/532,098
Ethylene-.alpha.-olefin-non-conjugated diene copolymer rubber composition
Inventors:
Akihiko Morikawa, Masayuki Motonari, Masashi Shimakage, Katsumi Oka
Patented Case
View Patent ↗
Granted: Nov 25, 1997
Filed: Sep 22, 1995
Inventors
Akihiko Morikawa
Masayuki Motonari
Masashi Shimakage
Katsumi Oka
Assignee (at issue)
Japan Synthetic Rubber Corporation
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.