Granted Patent
Utility
US 4,202,808 · App. 05/886,091
Vinyl resin latex coating compositions
Inventor:
You-Ling Fan
Patented Case
View Patent ↗
Granted: May 13, 1980
Filed: Mar 13, 1978
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.