Granted Patent
Utility
US 4,904,748 · App. 07/151,727
Blends of poly(etheresters) and polyesters
Inventors:
Robert W. Seymour, Thomas E. Flora
Patented Case
View Patent ↗
Granted: Feb 27, 1990
Filed: Feb 3, 1988
Inventors
Robert W. Seymour
Thomas E. Flora
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.