Granted Patent
Utility
US 4,825,002 · App. 07/115,859
Decontamination of (hydrocarbylthio) aromatic amines
Inventor:
Robert L. Davis
Patented Case
View Patent ↗
Granted: Apr 25, 1989
Filed: Nov 2, 1987
Inventor
Robert L. Davis
Assignee (at issue)
Ethyl Corporation
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.