Granted Patent
Utility
US 4,590,012 · App. 06/735,148
Process for preparing alpha-arylacrylonitriles
Inventor:
Venkataraman Ramachandran
Patented Case
View Patent ↗
Granted: May 20, 1986
Filed: May 17, 1985
Inventor
Venkataraman Ramachandran
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.