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Closure for container for holding biological samples

  • US 8,631,953 B2
  • Filed: 08/10/2005
  • Issued: 01/21/2014
  • Est. Priority Date: 08/10/2005
  • Status: Active Grant
First Claim
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1. A closure for a container having a mouth, said closure comprising (a) a cap, said cap made of a polymeric material, (b) an interior seal having two major surfaces, said interior seal consisting essentially of a layer of brittle material, and (c) an exterior seal having two major surfaces, said exterior seal consisting essentially of an elastomeric material haying a hardness ranging from about 30 Shore A to about 90 Shore A, said layer of brittle material haying two major surfaces, a major surface of said layer of brittle material being in contact with a major surface of said exterior seal.

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