Granted Patent
Utility
US 4,551,441 · App. 06/629,967
Nickel boride-polymer in-oil catalyst
Inventors:
Cornelis Martinus van Dijk, Rudolph O. de Jongh
Patented Case
View Patent ↗
Granted: Nov 5, 1985
Filed: Jul 11, 1984
Inventors
Cornelis Martinus van Dijk
Rudolph O. de Jongh
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.