Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From boron reactant having at least one boron to hydrogen or...
Reexamination Certificate
2007-10-01
2010-11-23
Egwim, Kelechi C (Department: 1796)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From boron reactant having at least one boron to hydrogen or...
C528S377000, C528S391000, C549S042000, C549S046000, C549S048000, C549S004000
Reexamination Certificate
active
07838612
ABSTRACT:
Described herein are aromatic sulfonimide compositions that can be used to prepare polymers useful as membranes in electrochemical cells.
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E. I. du Pont de Nemours and Company
Egwim Kelechi C
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