Granted Patent
Utility
US 4,625,610 · App. 06/794,706
Cutting chain having automatic sharpening
Inventor:
Michael V. Petrovich
Patented Case
View Patent ↗
Granted: Dec 2, 1986
Filed: Nov 4, 1985
Inventor
Michael V. Petrovich
Assignee (at issue)
Omark Industries, 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.