Granted Patent
Utility
US 4,628,539 · App. 06/705,372
Muting circuit
Inventor:
Anthony P. Selwa
Patented Case
View Patent ↗
Granted: Dec 9, 1986
Filed: Feb 25, 1985
Inventor
Anthony P. Selwa
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.