Granted Patent
Utility
US 5,106,166 · App. 07/578,972
Cutting bit holding apparatus
Inventor:
Michael L. O'Neill
Patented Case
View Patent ↗
Granted: Apr 21, 1992
Filed: Sep 7, 1990
Inventor
Michael L. O'Neill
Assignee (at issue)
Joy Technologies 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.