Granted Patent
Utility
US 4,526,822 · App. 06/551,394
Shaped articles from poly(ethylene terephthalate) modified with trans-4,4'- s
Inventors:
John C. Morris, Winston J. Jackson, Jr.
Patented Case
View Patent ↗
Granted: Jul 2, 1985
Filed: Nov 14, 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.