Granted Patent
Utility
US 4,681,600 · App. 06/776,652
Cutting tool fabrication process
Inventors:
Lawrence J. Rhoades, William D. Jenkins, David D. Pertle
Patented Case
View Patent ↗
Granted: Jul 21, 1987
Filed: Sep 16, 1985
Inventors
Lawrence J. Rhoades
William D. Jenkins
David D. Pertle
Assignee (at issue)
Extrude Hone GmbH
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.