Granted Patent
Utility
US 4,452,756 · App. 06/390,340
Method for producing a machinable, high strength hot formed powdered ferrous base metal alloy
Inventor:
Keith C. McLeod
Patented Case
View Patent ↗
Granted: Jun 5, 1984
Filed: Jun 21, 1982
Inventor
Keith C. McLeod
Assignee (at issue)
Imperial Clevite 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.