Granted Patent
Utility
US 5,457,210 · App. 08/231,602
Intermediates for the preparation of pyrazoloazole photographic couplers, processes of making and using them
Inventors:
Chang-Kyu Kim, Joan C. Potenza, Francesco DeBellis, David Hoke, Robert F. Romanet
Patented Case
View Patent ↗
Granted: Oct 10, 1995
Filed: Apr 22, 1994
Inventors
Chang-Kyu Kim
Joan C. Potenza
Francesco DeBellis
David Hoke
Robert F. Romanet
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.