Granted Patent
Utility
US 4,904,817 · App. 07/312,983
Process for the preparation of aromatic carboxylic acid esters
Inventor:
Guy R. Steinmetz
Patented Case
View Patent ↗
Granted: Feb 27, 1990
Filed: Feb 21, 1989
Inventor
Guy R. Steinmetz
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.