Granted Patent
Utility
US 4,744,748 · App. 06/914,636
Multiple burner torch tip
Inventors:
Clifford D. Raines, Claudio P. Negro
Patented Case
View Patent ↗
Granted: May 17, 1988
Filed: Oct 2, 1986
Inventors
Clifford D. Raines
Claudio P. Negro
Assignee (at issue)
Wingaersheek Division of 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.