Granted Patent
Utility
US 4,565,851 · App. 06/488,295
Containers having improved gas barrier properties
Inventor:
Robert B. Barbee
Patented Case
View Patent ↗
Granted: Jan 21, 1986
Filed: Apr 25, 1983
Inventor
Robert B. Barbee
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.