Granted Patent
Utility
US 4,259,478 · App. 06/103,805
Process for preparing high molecular weight copolyesters
Inventors:
Winston J. Jackson, Jr., Herbert F. Kuhfuss
Patented Case
View Patent ↗
Granted: Mar 31, 1981
Filed: Dec 14, 1979
Inventors
Winston J. Jackson, Jr.
Herbert F. Kuhfuss
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.