Granted Patent
Utility
US 5,652,091 · App. 08/583,354
Heat bleachable elements having polymeric acid layer adjacent heat bleachable antihalation layer
Inventors:
Robert James Perry, Ramanuj Goswami
Patented Case
View Patent ↗
Granted: Jul 29, 1997
Filed: Jan 5, 1996
Inventors
Robert James Perry
Ramanuj Goswami
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.