Granted Patent
Utility
US 4,225,482 · App. 05/968,831
Concentrated aqueous latex of ethylene/C.sub.2 -C.sub.3 -perfluorocarbon copolymer or terpolymer
Inventors:
Richard A. Ferren, Daniel A. Dimmig, John C. Grigger
Patented Case
View Patent ↗
Granted: Sep 30, 1980
Filed: Dec 12, 1978
Inventors
Richard A. Ferren
Daniel A. Dimmig
John C. Grigger
Assignee (at issue)
Pennwalt 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.