Granted Patent
Utility
US 5,370,753 · App. 08/114,651
Process for cladding precious metals to precipitation hardenable materials
Inventors:
Philip Warner Lees, William Loewenthal
Patented Case
View Patent ↗
Granted: Dec 6, 1994
Filed: Aug 31, 1993
Inventors
Philip Warner Lees
William Loewenthal
Assignee (at issue)
BRUSH WELLMAN, 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.