Granted Patent
Utility
US 5,328,525 · App. 08/000,765
Method and composition for treatment of metals
Inventors:
Edward M. Musingo, Bruce V. Haberle, Philip D. Deck
Patented Case
View Patent ↗
Granted: Jul 12, 1994
Filed: Jan 5, 1993
Inventors
Edward M. Musingo
Bruce V. Haberle
Philip D. Deck
Assignee (at issue)
Betz Laboratories, 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.