Granted Patent
Utility
US 4,655,972 · App. 06/627,616
Catalytic preparation of carbonamides
Inventors:
Teunis Eikelboom, John A. Rand, Pieter M. van Dijk
Patented Case
View Patent ↗
Granted: Apr 7, 1987
Filed: Jul 3, 1984
Inventors
Teunis Eikelboom
John A. Rand
Pieter M. van Dijk
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.