Granted Patent
Utility
US 5,833,017 · App. 08/720,904
Cutting bit assembly for impinging an earth strata
Inventors:
Gerald L. Woods, Percy D. Bollman, Cary D. Ritchey
Patented Case
View Patent ↗
Granted: Nov 10, 1998
Filed: Oct 10, 1996
Inventors
Gerald L. Woods
Percy D. Bollman
Cary D. Ritchey
Assignee (at issue)
KENNAMETAL 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.