Granted Patent
Utility
US 4,393,397 · App. 06/308,838
Television ghost signal detector with color burst phase delay control
Inventor:
David D. Holmes
Patented Case
View Patent ↗
Granted: Jul 12, 1983
Filed: Oct 5, 1981
Inventor
David D. Holmes
Assignee (at issue)
RCA 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.