Granted Patent
Utility
US 5,147,963 · App. 07/422,322
Process for the production of amorphous methyl vinyl ether homopolymers having a high molecular weight and narrow molecular weight distribution
Inventors:
Krystyna Plochocka, Mohammed Tazi
Patented Case
View Patent ↗
Granted: Sep 15, 1992
Filed: Oct 16, 1989
Inventors
Krystyna Plochocka
Mohammed Tazi
Assignee (at issue)
ISP INVESTMENTS 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.