Granted Patent
Utility
US 4,312,682 · App. 06/106,304
Method of heat treating nickel-base alloys for use as ceramic kiln hardware and product
Inventor:
Robert B. Herchenroeder
Patented Case
View Patent ↗
Granted: Jan 26, 1982
Filed: Dec 21, 1979
Inventor
Robert B. Herchenroeder
Assignee (at issue)
Cabot 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.