Granted Patent
Utility
US 4,316,154 · App. 06/137,882
Automatic sweep and acquisition circuit for a phase locked loop
Inventor:
Irving A. Krause
Patented Case
View Patent ↗
Granted: Feb 16, 1982
Filed: Apr 7, 1980
Inventor
Irving A. Krause
Assignee (at issue)
International Telephone and Telegraph 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.