Composite Shingle
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United States of America Patent
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Issued Date -
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app pub date -
Apr 8, 2011
filing date -
May 25, 2001
priority date (Note) -
Abandoned
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Abstract
Disclosed is a composite roofing shingle. The preferred roofing shingle includes a mixture of a polymer and a filler. The preferred blend includes between about 35-65% polyethylene and 50-70% crushed limestone filler.
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