Granted Patent
Utility
US 4,740,639 · App. 07/060,791
Process for preparation of 2,4-disubstituted-1,5-pentanediols
Inventor:
William A. Beavers
Patented Case
View Patent ↗
Granted: Apr 26, 1988
Filed: Jun 12, 1987
Inventor
William A. Beavers
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.