Granted Patent
Utility
US 4,376,067 · App. 06/289,539
Catalytic supports with controlled pore properties
Inventors:
Roger F. Vogel, George Marcelin
Patented Case
View Patent ↗
Granted: Mar 8, 1983
Filed: Aug 3, 1981
Inventors
Roger F. Vogel
George Marcelin
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.