Granted Patent
Utility
US 4,580,068 · App. 06/561,334
Keyed low impedance voltage source
Inventor:
Paul D. Filliman
Patented Case
View Patent ↗
Granted: Apr 1, 1986
Filed: Dec 14, 1983
Inventor
Paul D. Filliman
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.