Granted Patent
Utility
US 4,384,142 · App. 06/271,869
Production of cyclohexylamine
Inventors:
Helmut L. Merten, Gene R. Wilder
Patented Case
View Patent ↗
Granted: May 17, 1983
Filed: Jun 9, 1981
Inventors
Helmut L. Merten
Gene R. Wilder
Assignee (at issue)
Monsanto 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.