Granted Patent
Utility
US 4,604,273 · App. 06/725,043
Process for the growth of alpha silicon nitride whiskers
Inventors:
Gary Czupryna, Samuel Natansohn, Robert A. Long, Robin W. Munn
Patented Case
View Patent ↗
Granted: Aug 5, 1986
Filed: Apr 19, 1985
Inventors
Gary Czupryna
Samuel Natansohn
Robert A. Long
Robin W. Munn
Assignees (at issue)
GTE Products Corporation
GTE Laboratories Incorporated
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.