Granted Patent
Utility
US 4,439,248 · App. 06/345,260
Method of heat treating NICRALY alloys for use as ceramic kiln and furnace hardware
Inventors:
Robert B. Herchenroeder, George Y. Lai
Patented Case
View Patent ↗
Granted: Mar 27, 1984
Filed: Feb 2, 1982
Inventors
Robert B. Herchenroeder
George Y. Lai
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.