Granted Patent
Utility
US 5,685,772 · App. 08/336,338
Acoustic volume and torque weight sensor
Inventors:
David P. Andersen, Michael Farmer
Patented Case
View Patent ↗
Granted: Nov 11, 1997
Filed: Nov 9, 1994
Inventors
David P. Andersen
Michael Farmer
Assignee (at issue)
LOCKHEED MARTIN 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.