Granted Patent
Utility
US 5,923,946 · App. 08/840,961
Recovery of surface-ready silicon carbide substrates
Inventor:
Gerald H. Negley
Patented Case
View Patent ↗
Granted: Jul 13, 1999
Filed: Apr 17, 1997
Inventor
Gerald H. Negley
Assignee (at issue)
Cree Research 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.