Granted Patent
Utility
US 4,474,918 · App. 06/499,606
Thermoplastic polyester compositions having improved barrier properties
Inventors:
Robert W. Seymour, Ronald R. Light
Patented Case
View Patent ↗
Granted: Oct 2, 1984
Filed: May 31, 1983
Inventors
Robert W. Seymour
Ronald R. Light
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.