Granted Patent
Utility
US 4,222,949 · App. 06/068,033
Process for separating stigmasterol-derived products (II)
Inventor:
Charles H. Foster
Patented Case
View Patent ↗
Granted: Sep 16, 1980
Filed: Aug 20, 1979
Inventor
Charles H. Foster
Assignee (at issue)
EASTMAN KODAK COMPANY
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.