Granted Patent
Utility
US 4,806,676 · App. 07/209,120
Carbonylation process for preparation of aromatic carboxylic esters and an alkyl iodide
Inventors:
Guy R. Steinmetz, Mark Rule
Patented Case
View Patent ↗
Granted: Feb 21, 1989
Filed: Jun 20, 1988
Inventors
Guy R. Steinmetz
Mark Rule
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.