Granted Patent
Utility
US 5,331,080 · App. 08/114,864
Epoxide-phosphorous acid-containing reaction products and their use in coating compositions
Inventors:
Shanti Swarup, Gregory J. McCollum, Paul J. Prucnal, Debra L. Singer
Patented Case
View Patent ↗
Granted: Jul 19, 1994
Filed: Sep 2, 1993
Inventors
Shanti Swarup
Gregory J. McCollum
Paul J. Prucnal
Debra L. Singer
Assignee (at issue)
PPG 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.