Granted Patent
Utility
US 4,128,520 · App. 05/770,197
Thickening butadiene-styrene latices with terpolymer emulsions
Inventors:
Eugene S. Barabas, Andrew Klein, Dru W. Alwani
Patented Case
View Patent ↗
Granted: Dec 5, 1978
Filed: Feb 18, 1977
Inventors
Eugene S. Barabas
Andrew Klein
Dru W. Alwani
Assignee (at issue)
GAF 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.