Granted Patent
Utility
US 5,342,821 · App. 08/145,893
Dye migration barrier layer for dual laminate process for thermal color proofing
Inventor:
Glenn T. Pearce
Patented Case
View Patent ↗
Granted: Aug 30, 1994
Filed: Oct 29, 1993
Inventor
Glenn T. Pearce
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.