Granted Patent
Utility
US 4,228,463 · App. 06/039,883
Switched AFPC loop filter with offset voltage cancellation
Inventors:
Steven A. Steckler, Alvin R. Balaban
Patented Case
View Patent ↗
Granted: Oct 14, 1980
Filed: May 17, 1979
Inventors
Steven A. Steckler
Alvin R. Balaban
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.