Granted Patent
Utility
US 5,083,002 · App. 07/639,434
Shielding gas mixture for welding superalloys
Inventors:
Gregory L. Hoback, James L. Meyers
Patented Case
View Patent ↗
Granted: Jan 21, 1992
Filed: Jan 10, 1991
Inventors
Gregory L. Hoback
James L. Meyers
Assignee (at issue)
Haynes International, Inc.
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.