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Slow release nitrogen coating

  • US 6,900,162 B2
  • Filed: 03/26/2003
  • Issued: 05/31/2005
  • Est. Priority Date: 03/26/2002
  • Status: Expired due to Term
First Claim
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1. A coated aggregate material for placing in proximity to a plant, the aggregate having an adherent coating thereon comprising an adhesive binder and a particulate urea-formaldehyde polymer.

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  • 6 Assignments
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