Granted Patent
Utility
US 4,100,700 · App. 05/748,293
Workpiece conditioning grinder system
Inventors:
Allen E. Peirce, Robert F. Obear, David Olson
Patented Case
View Patent ↗
Granted: Jul 18, 1978
Filed: Dec 7, 1976
Inventors
Allen E. Peirce
Robert F. Obear
David Olson
Assignee (at issue)
Western Gear 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.