Granted Patent
Utility
US 4,948,848 · App. 07/334,405
Solution feed, slurry polymerization process for the production of copolymers of maleic anhydride and an alkyl vinyl ether having predetermined specific viscosities
Inventors:
Mohammed Tazi, Nikhil Kundel
Patented Case
View Patent ↗
Granted: Aug 14, 1990
Filed: Apr 7, 1989
Inventors
Mohammed Tazi
Nikhil Kundel
Assignee (at issue)
GAF Chemicals Corporation
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.