Granted Patent
Utility
US 4,169,933 · App. 05/822,989
Liquid crystal copolyesters containing terephthalic acid and 2,6-naphthalenedicarboxylic acid
Inventors:
Winston J. Jackson, Jr., John C. Morris
Patented Case
View Patent ↗
Granted: Oct 2, 1979
Filed: Aug 8, 1977
Inventors
Winston J. Jackson, Jr.
John C. Morris
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.