Granted Patent
Utility
US 6,177,579 · App. 09/313,028
Process for the preparation of 13-cis-retinoic acid
Inventor:
Angelo Magnone Grato
Patented Case
View Patent ↗
Granted: Jan 23, 2001
Filed: May 17, 1999
Inventor
Angelo Magnone Grato
Assignee (at issue)
Laboratori Mag S.p.A.
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.