Granted Patent
Utility
US 4,741,820 · App. 06/844,951
Reforming/dehydrocyclization catalysts and processes
Inventors:
Peter K. Coughlin, Regis J. Pellet
Patented Case
View Patent ↗
Granted: May 3, 1988
Filed: Mar 27, 1986
Inventors
Peter K. Coughlin
Regis J. Pellet
Assignee (at issue)
Union Carbide Corporation
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.