Granted Patent
Utility
US 4,355,122 · App. 06/216,639
Water-borne thermoplastic polyhydroxyether compositions
Inventor:
You-Ling Fan
Patented Case
View Patent ↗
Granted: Oct 19, 1982
Filed: Dec 15, 1980
Inventor
You-Ling Fan
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.