Granted Patent
Utility
US 4,990,666 · App. 07/018,255
Racemization of optically active amino alcohols
Inventor:
Stephen G. Harsy
Patented Case
View Patent ↗
Granted: Feb 5, 1991
Filed: Feb 4, 1987
Inventor
Stephen G. Harsy
Assignee (at issue)
W.R. Grace & Co. Conn.
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.