Granted Patent
Utility
US 4,743,353 · App. 06/825,201
Oxidation process
Inventors:
Pauline B. Ting, Howard D. Simpson
Patented Case
View Patent ↗
Granted: May 10, 1988
Filed: Feb 3, 1986
Inventors
Pauline B. Ting
Howard D. Simpson
Assignee (at issue)
Union Oil Company of California
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.