Granted Patent
Utility
US 5,416,527 · App. 08/168,625
Frequency locking system using sound intermediate frequency (IF) carrier in a television signal
Inventor:
Robert F. Casey
Patented Case
View Patent ↗
Granted: May 16, 1995
Filed: Dec 15, 1993
Inventor
Robert F. Casey
Assignee (at issue)
Zoran 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.