Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Reexamination Certificate
2008-04-01
2008-04-01
Szekely, Peter (Department: 1796)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
Reexamination Certificate
active
07351756
ABSTRACT:
A composite material is disclosed having a matrix formed of polyethylene terephthalate and cement particles distributed in the matrix. The cement particles may be Portland cement. About 50 wt % or less of the composite material is cement particles. The cement particles have an average particle size of no more than about 100 μm.
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Simmons Walter John
Simmons Walter Neal
Steptoe & Johnson LLP
Szekely Peter
Terrasimco Inc.
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