Granted Patent
Utility
US 4,127,840 · App. 05/770,596
Solid state force transducer
Inventor:
J. Hardy House
Patented Case
View Patent ↗
Granted: Nov 28, 1978
Filed: Feb 22, 1977
Inventor
J. Hardy House
Assignee (at issue)
Conrac 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.