Granted Patent
Utility
US 4,299,976 · App. 06/080,354
Preparation of unsaturated diester precursor for sebacic acid
Inventors:
Chao-Yang Hsu, Haven S. Kesling, Jr.
Patented Case
View Patent ↗
Granted: Nov 10, 1981
Filed: Sep 28, 1979
Inventors
Chao-Yang Hsu
Haven S. Kesling, Jr.
Assignee (at issue)
Atlantic Richfield 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.