Granted Patent
Utility
US 5,392,720 · App. 08/255,167
Flame retaining nozzle tip
Inventors:
Oliver G. Briggs, Jr., Donald S. Langille, Francis G. Ouellette
Patented Case
View Patent ↗
Granted: Feb 28, 1995
Filed: Jun 7, 1994
Inventors
Oliver G. Briggs, Jr.
Donald S. Langille
Francis G. Ouellette
Assignee (at issue)
Riley Stoker 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.