Granted Patent
Utility
US 4,279,798 · App. 06/134,854
Polydiene polyalkylene oxide block copolymers and their use as alcohol hydrocarbon dispersants
Inventors:
Sundar L. Aggarwal, Ivan G. Hargis, Russell A. Livigni
Patented Case
View Patent ↗
Granted: Jul 21, 1981
Filed: Mar 28, 1980
Inventors
Sundar L. Aggarwal
Ivan G. Hargis
Russell A. Livigni
Assignee (at issue)
The General Tire & Rubber Company
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.