Granted Patent
Utility
US 4,643,780 · App. 06/664,058
Method for producing dispersion strengthened aluminum alloys and product
Inventors:
Paul S. Gilman, Stephen J. Donachie
Patented Case
View Patent ↗
Granted: Feb 17, 1987
Filed: Oct 23, 1984
Inventors
Paul S. Gilman
Stephen J. Donachie
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.