Granted Patent
Utility
US 4,418,210 · App. 06/334,705
Process for producing asymmetrical thioureas
Inventor:
Jeffrey D. Robbins
Patented Case
View Patent ↗
Granted: Nov 29, 1983
Filed: Dec 28, 1981
Inventor
Jeffrey D. Robbins
Assignee (at issue)
Stauffer Chemical 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.