Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Nitrogen-containing reactant
Reexamination Certificate
2007-05-01
2007-05-01
Choi, Ling-Sui (Department: 1713)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Nitrogen-containing reactant
C528S373000, C528S425000, C528S423000, C528S331000, C528S408000, C252S301160, C252S301320
Reexamination Certificate
active
10809169
ABSTRACT:
The present invention is generally directed to copolymers of fluorene. It further relates to devices that are made with the copolymers.
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Simmons, III Howard E.
Uckert Frank P.
Choi Ling-Sui
E. I. du Pont de Nemours and Company
Lamming John H.
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