Granted Patent
Utility
US 4,237,085 · App. 06/021,403
Method of producing a high density silicon carbide product
Inventor:
Richard H. Smoak
Patented Case
View Patent ↗
Granted: Dec 2, 1980
Filed: Mar 19, 1979
Inventor
Richard H. Smoak
Assignee (at issue)
Carborundum 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.