Granted Patent
Utility
US 4,496,747 · App. 06/487,396
Process for the preparation of dehydroacetic acid
Inventor:
Robert J. Clemens
Patented Case
View Patent ↗
Granted: Jan 29, 1985
Filed: Apr 21, 1983
Inventor
Robert J. Clemens
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.