Granted Patent
Utility
US 5,091,702 · App. 07/631,522
Automatic sweep-to-lock circuit for a phase-locked loop
Inventor:
John D. Foell
Patented Case
View Patent ↗
Granted: Feb 25, 1992
Filed: Dec 21, 1990
Inventor
John D. Foell
Assignee (at issue)
Magnavox Government and Industrial Electronics Company
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.