Granted Patent
Utility
US 4,325,880 · App. 06/250,811
Process for conversion of sterol i-methyl ethers to sterols
Inventor:
Charles H. Foster
Patented Case
View Patent ↗
Granted: Apr 20, 1982
Filed: Apr 3, 1981
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.