Granted Patent
Utility
US 4,849,704 · App. 07/038,687
Duty cycle independent phase detector
Inventor:
Roger Thornton
Patented Case
View Patent ↗
Granted: Jul 18, 1989
Filed: Apr 15, 1987
Inventor
Roger Thornton
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.