Granted Patent
Utility
US 4,856,942 · App. 07/221,392
Polygonal cutting insert
Inventors:
Thomas J. Bernadic, John Patterson, Tony Lowe
Patented Case
View Patent ↗
Granted: Aug 15, 1989
Filed: Jul 19, 1988
Inventors
Thomas J. Bernadic
John Patterson
Tony Lowe
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.