Granted Patent
Utility
US 5,019,635 · App. 07/498,178
Copolymers of dioxolanes and maleic anhydride
Inventors:
Richard W. Blevins, S. Richard Turner
Patented Case
View Patent ↗
Granted: May 28, 1991
Filed: Mar 23, 1990
Inventors
Richard W. Blevins
S. Richard Turner
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.