Granted Patent
Utility
US 4,651,342 · App. 06/703,412
Auxiliary control unit for a television receiver
Inventor:
William H. Mengel
Patented Case
View Patent ↗
Granted: Mar 17, 1987
Filed: Feb 20, 1985
Inventor
William H. Mengel
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.