Granted Patent
Utility
US 5,965,667 · App. 08/962,788
Polyether amine modification of polypropylene
Inventors:
Randall Keith Evans, Richard J. G. Dominguez, Richard J. Clark
Patented Case
View Patent ↗
Granted: Oct 12, 1999
Filed: Nov 3, 1997
Inventors
Randall Keith Evans
Richard J. G. Dominguez
Richard J. Clark
Assignee (at issue)
HUNTSMAN PETROCHEMICAL LLC
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.