Granted Patent
Utility
US 4,420,607 · App. 06/475,567
Polyesters of trans-4,4-stilbenedicarboxylic acid, terephthalic acid or 2,6-naphthalenedicarboxylic acid, and 1,2-propanediol
Inventors:
John C. Morris, Winston J. Jackson, Jr.
Patented Case
View Patent ↗
Granted: Dec 13, 1983
Filed: Mar 15, 1983
Inventors
John C. Morris
Winston J. Jackson, Jr.
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.