Granted Patent
Utility
US 5,240,521 · App. 07/729,473
Heat treatment for dispersion strengthened aluminum-base alloy
Inventors:
James R. Crum, Robert D. Schelleng, James McEwen, John Weber
Patented Case
View Patent ↗
Granted: Aug 31, 1993
Filed: Jul 12, 1991
Inventors
James R. Crum
Robert D. Schelleng
James McEwen
John Weber
Assignee (at issue)
INCO Alloys International, 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.