Granted Patent
Utility
US 4,891,395 · App. 07/198,035
High styrene content, stable polymer using epoxy resin-modified polyols as dispersants
Inventors:
Robert G. Gastinger, John E. Hayes
Patented Case
View Patent ↗
Granted: Jan 2, 1990
Filed: May 24, 1988
Inventors
Robert G. Gastinger
John E. Hayes
Assignee (at issue)
Arco Chemical Technology, L.P.
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.