Granted Patent
Utility
US 5,034,488 · App. 07/463,709
Slurry polymerization of crosslinked maleic anhydride-alkyl vinyl ether copolymers in a solvent system comprising a carboxylic acid ester and a saturated hydrocarbon
Inventors:
Mohammed Tazi, Yoon T. Kwak, Robert B. Login
Patented Case
View Patent ↗
Granted: Jul 23, 1991
Filed: Jan 11, 1990
Inventors
Mohammed Tazi
Yoon T. Kwak
Robert B. Login
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.