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Expired Canadian patentCanada

Apparatus for automated manufacture of welded foam structures

CA 2558482 C · Owner: Demoss, Larry · Inventors: Barman, Bruce G.; Demoss, Larry

CIPO record

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

An apparatus and device for fusing two or more foam components together by thermal welding, the apparatus and device comprising an interface blade adapted for placement at an interface of foam components to be fused together and a nozzle proximate to the interface blade for distributing a heated gas at the interface of the foam components. The nozzle may be located in a shroud proximate to the interface blade. An automated foam welding apparatus has a platform for supporting foam components or other components a clamp for , applying pressure to one or more of the foam components and one or more , welding heads mounted upon a track for translation proximate to the foam components to be …

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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Filed March 3, 2005 and granted January 22, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 3, 2025.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 3, 2005
GrantedJanuary 22, 2013
Term endedMarch 3, 2025
Patent numberCA 2558482 C
Classification (IPC)B29C65/06

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedMarch 3, 2005Patent grantedJan 22, 2013Term endedMarch 3, 2025

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.