Granted Patent
Utility
US 4,381,418 · App. 06/327,656
Catalytic dehydrogenation process
Inventors:
Steve A. Gewartowski, Dennis E. O'Brien
Patented Case
View Patent ↗
Granted: Apr 26, 1983
Filed: Dec 4, 1981
Inventors
Steve A. Gewartowski
Dennis E. O'Brien
Assignee (at issue)
UOP LLC
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.