Granted Patent
Utility
US 4,722,320 · App. 06/924,051
Cutting segment for circular cutting wheel
Inventor:
Thomas Elvin DELK
Patented Case
View Patent ↗
Granted: Feb 2, 1988
Filed: Oct 28, 1986
Inventor
Thomas Elvin DELK
Assignee (at issue)
Wheel Trueing Tool Company
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.