Granted Patent
Utility
US 4,332,755 · App. 06/218,589
Sintered silicon carbide - aluminum nitride articles and method of making such articles
Inventor:
Yorihiro Murata
Patented Case
View Patent ↗
Granted: Jun 1, 1982
Filed: Dec 19, 1980
Inventor
Yorihiro Murata
Assignee (at issue)
Kennecott Holdings Company
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.