Granted Patent
Utility
US 3,957,544 · App. 05/498,700
Ferritic stainless steels
Inventors:
Kenneth E. Pinnow, Jerome P. Bressanelli
Patented Case
View Patent ↗
Granted: May 18, 1976
Filed: Aug 19, 1974
Inventors
Kenneth E. Pinnow
Jerome P. Bressanelli
Assignee (at issue)
CRUCIBLE, 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.