Granted Patent
Utility
US 4,340,702 · App. 06/086,853
Ultrafiltration of vinyl resin latices and reuse of permeate in emulsion polymerization
Inventors:
George R. Huddleston, Jr., James W. Turner
Patented Case
View Patent ↗
Granted: Jul 20, 1982
Filed: Oct 22, 1979
Inventors
George R. Huddleston, Jr.
James W. Turner
Assignee (at issue)
B. F. Goodrich Company
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.