Granted Patent
Utility
US 4,871,445 · App. 07/243,709
Hydrocarbon conversion
Inventors:
Jeffery W. Koepke, Suheil F. Abdo
Patented Case
View Patent ↗
Granted: Oct 3, 1989
Filed: Sep 13, 1988
Inventors
Jeffery W. Koepke
Suheil F. Abdo
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.