Granted Patent
Utility
US 4,436,895 · App. 06/484,401
Polyester containers having improved gas barrier properties
Inventors:
Robert B. Barbee, Burns Davis
Patented Case
View Patent ↗
Granted: Mar 13, 1984
Filed: Apr 13, 1983
Inventors
Robert B. Barbee
Burns Davis
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.