Granted Patent
Utility
US 4,857,692 · App. 07/233,046
Spray mode gas metal arc welding process
Inventors:
Nils E. Larson, David B. Leturno, Lawrence Cherne
Patented Case
View Patent ↗
Granted: Aug 15, 1989
Filed: Aug 17, 1988
Inventors
Nils E. Larson
David B. Leturno
Lawrence Cherne
Assignee (at issue)
Union Carbide 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.