Granted Patent
Utility
US 4,249,132 · App. 05/965,218
Continuous tuning arrangement for a multiband television receiver
Inventor:
Dal Frank Griepentrog
Patented Case
View Patent ↗
Granted: Feb 3, 1981
Filed: Nov 30, 1978
Inventor
Dal Frank Griepentrog
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.