Granted Patent
Utility
US 4,658,245 · App. 06/490,010
Tool condition and failure monitoring apparatus and method
Inventors:
Denver R. Dye, David J. Gee, Richard L. Patterson, Stephen M. Zielaskiewicz
Patented Case
View Patent ↗
Granted: Apr 14, 1987
Filed: Apr 29, 1983
Inventors
Denver R. Dye
David J. Gee
Richard L. Patterson
Stephen M. Zielaskiewicz
Assignee (at issue)
Warner & Swasey
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.