Ramp and method of construction

  • US RE41,851 E1
  • Filed: 03/24/2008
  • Issued: 10/26/2010
  • Est. Priority Date: 08/03/2004
  • Status: Active Grant
First Claim
Patent Images

1. A ramp comprising a core comprised of a parallelepiped substantially solid block of low density plastic foam with a front face at an entry end sloping from a bottom side to a substantially horizontal top surface;

  • anda polyurea coating applied over the core to encase said core therein and substantially strengthen said core as well as providing a durable ramp surface.

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