Granted Patent
Utility
US 5,721,315 · App. 08/515,706
Polyether amine modification of polypropylene
Inventors:
Randall Keith Evans, Richard Joseph Gilbert Dominguez, Richard J. Clark
Patented Case
View Patent ↗
Granted: Feb 24, 1998
Filed: Aug 16, 1995
Inventors
Randall Keith Evans
Richard Joseph Gilbert 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.