Granted Patent
Utility
US 5,216,847 · App. 07/508,060
Abrasive filament honing tool and method of making and using same
Inventors:
Alfred A. Scheider, R. Brown Warner
Patented Case
View Patent ↗
Granted: Jun 8, 1993
Filed: Apr 11, 1990
Inventors
Alfred A. Scheider
R. Brown Warner
Assignee (at issue)
Jason Incorporated
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.