Granted Patent
Utility
US 5,407,348 · App. 08/017,734
Torch with integral flashback arrestors and check valves
Inventors:
Carl W. Mims, Roger D. Zwicker
Patented Case
View Patent ↗
Granted: Apr 18, 1995
Filed: Feb 10, 1993
Inventors
Carl W. Mims
Roger D. Zwicker
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.