Granted Patent
Utility
US 4,139,375 · App. 05/875,615
Process for sintering powder metal parts
Inventors:
Jack Solomon, Thomas F. Kinneman
Patented Case
View Patent ↗
Granted: Feb 13, 1979
Filed: Feb 6, 1978
Inventors
Jack Solomon
Thomas F. Kinneman
Assignee (at issue)
Union Carbide 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.