Granted Patent
Utility
US 4,491,807 · App. 06/380,289
FET Negative resistance circuits
Inventor:
Merle V. Hoover
Patented Case
View Patent ↗
Granted: Jan 1, 1985
Filed: May 20, 1982
Inventor
Merle V. Hoover
Assignee (at issue)
RCA 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.