Granted Patent
Utility
US 4,587,496 · App. 06/649,677
Fast acquisition phase-lock loop
Inventor:
Dan H. Wolaver
Patented Case
View Patent ↗
Granted: May 6, 1986
Filed: Sep 12, 1984
Inventor
Dan H. Wolaver
Assignee (at issue)
Federal Signal Corporation
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.