Granted Patent
Utility
US 4,631,265 · App. 06/747,439
Nickel/alumina/silicate catalyst, its preparation
Inventors:
Johannes C. Oudejans, Peter Nootenboom, Keshab L. Ganguli, Cornelis Martinus Lok
Patented Case
View Patent ↗
Granted: Dec 23, 1986
Filed: Jun 21, 1985
Inventors
Johannes C. Oudejans
Peter Nootenboom
Keshab L. Ganguli
Cornelis Martinus Lok
Assignee (at issue)
Internationale Otrool Maatschappij Octropa B.V.
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.