Granted Patent
Utility
US 4,309,689 · App. 06/099,407
Signal transducing unit
Inventors:
Kenneth M. Merz, Laurence N. Wesson
Patented Case
View Patent ↗
Granted: Jan 5, 1982
Filed: Dec 3, 1979
Inventors
Kenneth M. Merz
Laurence N. Wesson
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.