Granted Patent
Utility
US 4,873,069 · App. 07/284,910
Method for the preparation of silicon carbide whiskers
Inventors:
Samuel C. Weaver, Richard D. Nixdorf
Patented Case
View Patent ↗
Granted: Oct 10, 1989
Filed: Dec 15, 1988
Inventors
Samuel C. Weaver
Richard D. Nixdorf
Assignee (at issue)
American Matrix, Inc.
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.