Granted Patent
Utility
US 4,933,141 · App. 07/172,772
Method for making a clad metal product
Inventors:
William L. Mankins, David O. Gothard, Charles P. Hardy
Patented Case
View Patent ↗
Granted: Jun 12, 1990
Filed: Mar 28, 1988
Inventors
William L. Mankins
David O. Gothard
Charles P. Hardy
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.