Granted Patent
Utility
US 4,585,409 · App. 06/644,226
Spring loaded heating torch tip
Inventor:
David A. Pryor
Patented Case
View Patent ↗
Granted: Apr 29, 1986
Filed: Aug 27, 1984
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.