Granted Patent
Utility
US 4,503,206 · App. 06/452,393
.alpha.,.omega.-Perfluorodicarboxylic acids
Inventor:
Ivan M. Robinson
Patented Case
View Patent ↗
Granted: Mar 5, 1985
Filed: Dec 22, 1982
Inventor
Ivan M. Robinson
Assignee (at issue)
THE TRUSTEES OF INDIANA UNIVERSITY
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.