Granted Patent
Utility
US 4,801,668 · App. 07/070,005
High softening point hydrocarbon resins from 1,5-cyclooctadiene
Inventor:
William A. Beavers
Patented Case
View Patent ↗
Granted: Jan 31, 1989
Filed: Jul 6, 1987
Inventor
William A. Beavers
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.