Granted Patent
Utility
US 4,387,401 · App. 06/305,688
Carrier detector apparatus useful in a multiband sweep type tuning system
Inventors:
John G. N. Henderson, Robert J. Maturo
Patented Case
View Patent ↗
Granted: Jun 7, 1983
Filed: Sep 25, 1981
Inventors
John G. N. Henderson
Robert J. Maturo
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.