Granted Patent
Utility
US 4,731,465 · App. 06/586,876
Process for producing nitrilotriacetonitrile
Inventors:
Chung Y. Shen, Kent P. Lannert
Patented Case
View Patent ↗
Granted: Mar 15, 1988
Filed: Mar 7, 1984
Inventors
Chung Y. Shen
Kent P. Lannert
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.