Granted Patent
Utility
US 5,341,978 · App. 08/106,897
Braze furnace with improved inert gas system
Inventors:
Gary A. Halstead, Brian L. Barten
Patented Case
View Patent ↗
Granted: Aug 30, 1994
Filed: Aug 16, 1993
Inventors
Gary A. Halstead
Brian L. Barten
Assignee (at issue)
General Motors LLC
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.