Granted Patent
Utility
US 4,451,608 · App. 06/393,546
Amphoteric acrylic ester based latexes
Inventors:
Kenneth C. Drake, Richard A. Hammock
Patented Case
View Patent ↗
Granted: May 29, 1984
Filed: Jun 30, 1982
Inventors
Kenneth C. Drake
Richard A. Hammock
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.