Granted Patent
Utility
US 4,902,820 · App. 07/312,982
Preparation of .alpha.-acyloxycarbonyl compounds
Inventor:
Joseph Robert Zoeller
Patented Case
View Patent ↗
Granted: Feb 20, 1990
Filed: Feb 21, 1989
Inventor
Joseph Robert Zoeller
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.