Granted Patent
Utility
US 4,607,111 · App. 06/736,904
Process for separation of tocopherol homologues (II)
Inventor:
Charles H. Foster
Patented Case
View Patent ↗
Granted: Aug 19, 1986
Filed: May 22, 1985
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.