Granted Patent
Utility
US 4,890,071 · App. 07/262,767
Signal generator utilizing a combined phase locked and frequency locked loop
Inventor:
George S. Curtis
Patented Case
View Patent ↗
Granted: Dec 26, 1989
Filed: Oct 26, 1988
Inventor
George S. Curtis
Assignee (at issue)
Hewlett-Packard Company, L.P.
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.