Granted Patent
Utility
US 5,156,501 · App. 07/741,848
Adjustable torsion bar cartridge for face mills
Inventors:
James A. Pawlik, Raymond A. Stephens
Patented Case
View Patent ↗
Granted: Oct 20, 1992
Filed: Aug 7, 1991
Inventors
James A. Pawlik
Raymond A. Stephens
Assignee (at issue)
GTE Valenite 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.