Granted Patent
Utility
US 4,429,159 · App. 06/476,741
Catalyst separation in production of amines
Inventors:
Charles E. Cutchens, Lynn H. Lanier
Patented Case
View Patent ↗
Granted: Jan 31, 1984
Filed: Mar 18, 1983
Inventors
Charles E. Cutchens
Lynn H. Lanier
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.