US Patent 7985779 Manufacture of polyurethane foam ball
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Patent abstract
The present invention relates to a novel method for manufacturing a cellular elastomeric polyurethane foam ball. The product polyurethane foam ball may be used as a core for a tennis ball which meets ITF specifications for tennis balls, including weight, diameter, bound, forward deformation and return deformation.
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Patent Inventor Names
Johannes C. Vleghert0
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US Patent 07985779 Manufacture of polyurethane foam ball US Patent 7985779 Manufacture of polyurethane foam ball
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Patent Number
079857790
Patent Number
79857790
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Patent Jurisdiction
Patent Number
079857790
Date of Patent
July 26, 2011
0Patent Application Number
121742080
Date Filed
July 16, 2008
0Patent Primary Examiner
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US Patent 07985779 Manufacture of polyurethane foam ball
Infobox
Is a
Patent jurisdiction
Patent number
07985779
Date of patent
July 26, 2011
Patent application number
12174208
Date Filed
July 16, 2008
Patent primary examiner
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