Granted Patent
Utility
US 5,221,765 · App. 07/825,150
Racemization process for an optically active carboxylic acid or ester thereof
Inventors:
Deepak R. Patil, Azfar A. Choudhury, Abbas Kadkhodayan
Patented Case
View Patent ↗
Granted: Jun 22, 1993
Filed: Jan 24, 1992
Inventors
Deepak R. Patil
Azfar A. Choudhury
Abbas Kadkhodayan
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.