Granted Patent
Utility
US 4,485,209 · App. 06/537,513
Process for producing a polymer water-in-oil emulsion
Inventors:
You-Ling Fan, George L. Brode
Patented Case
View Patent ↗
Granted: Nov 27, 1984
Filed: Sep 30, 1983
Inventors
You-Ling Fan
George L. Brode
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.