Granted Patent
Utility
US 6,468,470 · App. 09/335,622
Galvanized metal corrosion inhibitor
Inventors:
Michael T. Oldsberg, Bruce D. Busch
Patented Case
View Patent ↗
Granted: Oct 22, 2002
Filed: Jun 18, 1999
Inventors
Michael T. Oldsberg
Bruce D. Busch
Assignee (at issue)
Fremont Industries, 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.