Stock material or miscellaneous articles – Hollow or container type article – Polymer or resin containing
Reexamination Certificate
2005-08-23
2005-08-23
Pyon, Harold (Department: 1772)
Stock material or miscellaneous articles
Hollow or container type article
Polymer or resin containing
C428S036600, C428S321100, C428S321500, C428S446000, C428S448000, C428S451000, C428S518000, C428S920000, C428S921000, C428S182000, C138S121000, C138S122000, C138S148000, C138S173000, C052S783130, C252S601000, C252S606000, C252S610000
Reexamination Certificate
active
06933028
ABSTRACT:
A plastics material tube that is particularly resistant to fire, such that its wall is formed by a corrugated tube of flammable plastics material, by a smooth tube lining the outside of the corrugated tube and made of a plastics material that limits flame propagation, and by a fireproofing composition received between the two tubes.
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Translation of FR 2,747,175.
Bruenjes Chris
Dykema Gossett PLLC
Nobel Plastiques
Pyon Harold
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