Granted Patent
Utility
US 4,510,263 · App. 06/542,363
Catalyst with high geometric surface area alumina extrudate and catalyst with high geometric surface area
Inventors:
Carmo J. Pereira, Louis Hegedus
Patented Case
View Patent ↗
Granted: Apr 9, 1985
Filed: Oct 17, 1983
Inventors
Carmo J. Pereira
Louis Hegedus
Assignee (at issue)
W. R. Grace & Co.
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.