Granted Patent
Utility
US 3,952,069 · App. 05/553,183
Hydrogenation of aromatics
Inventors:
Robert D. Christman, Geoffrey R. Wilson
Patented Case
View Patent ↗
Granted: Apr 20, 1976
Filed: Feb 26, 1975
Inventors
Robert D. Christman
Geoffrey R. Wilson
Assignee (at issue)
Gulf Research & Development 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.