Granted Patent
Utility
US 4,281,230 · App. 06/081,937
Anti-arc prod
Inventor:
Carl A. Naylor
Patented Case
View Patent ↗
Granted: Jul 28, 1981
Filed: Oct 4, 1979
Inventor
Carl A. Naylor
Assignee (at issue)
Allis-Chalmers Corporation
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.