Granted Patent
Utility
US 4,546,331 · App. 06/581,767
Frequency modulation in a phase-locked loop
Inventors:
Marcus K. DaSilva, David P. Whipple, Robert E. Temple
Patented Case
View Patent ↗
Granted: Oct 8, 1985
Filed: Feb 21, 1984
Inventors
Marcus K. DaSilva
David P. Whipple
Robert E. Temple
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.