Granted Patent
Utility
US 4,235,092 · App. 06/046,945
Low friction bearing running torque measuring apparatus
Inventor:
James M. Spall
Patented Case
View Patent ↗
Granted: Nov 25, 1980
Filed: Jun 8, 1979
Inventor
James M. Spall
Assignee (at issue)
Burroughs, Inc.
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.