Granted Patent
Utility
US 4,243,962 · App. 05/897,420
Digital tuning element and method of making same
Inventors:
Joseph F. Larkin, Harold M. Cassidy, John W. Woodcock, William M. Dunn
Patented Case
View Patent ↗
Granted: Jan 6, 1981
Filed: Apr 18, 1978
Inventors
Joseph F. Larkin
Harold M. Cassidy
John W. Woodcock
William M. Dunn
Assignee (at issue)
TRW Limited
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.