Granted Patent
Utility
US 4,253,885 · App. 06/070,584
Treating nickel base alloys
Inventors:
Gernant E. Maurer, William J. Boesch
Patented Case
View Patent ↗
Granted: Mar 3, 1981
Filed: Aug 29, 1979
Inventors
Gernant E. Maurer
William J. Boesch
Assignee (at issue)
SPECIAL METALS 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.