Granted Patent
Utility
US 4,352,074 · App. 06/117,704
Phase-locked loop filter
Inventors:
Herman J. Blinchikoff, George R. Vaughan
Patented Case
View Patent ↗
Granted: Sep 28, 1982
Filed: Feb 1, 1980
Inventors
Herman J. Blinchikoff
George R. Vaughan
Assignee (at issue)
Westinghouse Electric Company LLC
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.