Granted Patent
Utility
US 4,783,548 · App. 07/097,021
Processes for preparing 3,4-dihydro 2-naphthanoic acid and 2-naphthanoic acid and esters thereof
Inventor:
Joseph Robert Zoeller
Patented Case
View Patent ↗
Granted: Nov 8, 1988
Filed: Sep 16, 1987
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.