Granted Patent
Utility
US 4,222,952 · App. 06/051,492
Siloxane bond rearrangement effected by solid perfluorinated polymers containing pendant sulfonic acid groups
Inventor:
Steven C. Vick
Patented Case
View Patent ↗
Granted: Sep 16, 1980
Filed: Jun 25, 1979
Inventor
Steven C. Vick
Assignee (at issue)
Union Carbide 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.