Granted Patent
Utility
US 4,281,278 · App. 06/100,454
Redundant battery protection system
Inventors:
Herbert W. Bilsky, Patrick J. Callen
Patented Case
View Patent ↗
Granted: Jul 28, 1981
Filed: Dec 5, 1979
Inventors
Herbert W. Bilsky
Patrick J. Callen
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.