Granted Patent
Utility
US 6,136,927 · App. 09/158,853
Phosphatized amine chain-extended epoxy polymeric compounds
Inventors:
Shanti Swarup, Padmanabhan Sundararaman, John M. Dudik, Brian K. Rearick, Marie Edla Simeon
Patented Case
View Patent ↗
Granted: Oct 24, 2000
Filed: Sep 23, 1998
Inventors
Shanti Swarup
Padmanabhan Sundararaman
John M. Dudik
Brian K. Rearick
Marie Edla Simeon
Assignee (at issue)
PPG Industries Ohio, 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.