Granted Patent
Utility
US 5,213,802 · App. 07/586,839
Pharmaceutical formulations employing esterified alkoxylated polyols as vehicles
Inventor:
Lawrence W. Masten
Patented Case
View Patent ↗
Granted: May 25, 1993
Filed: Sep 24, 1990
Inventor
Lawrence W. Masten
Assignee (at issue)
Arco Chemical Technology, L.P.
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.