Granted Patent
Utility
US 4,477,262 · App. 06/494,882
Mixer for cutting torch
Inventor:
David A. Pryor
Patented Case
View Patent ↗
Granted: Oct 16, 1984
Filed: May 16, 1983
Inventor
David A. Pryor
Assignee (at issue)
VICTOR EQUIPMENT 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.