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Expired Canadian patentCanada

Double-face velour fabric articles having improved dynamic insulation performance

CA 2408687 C · Owner: Lumb, Douglas · Inventors: Rock, Moshe; Lie, William K.; Lumb, Douglas

CIPO record

Overview

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

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Abstract From the Canadian patent

A double-face velour fabric article consists of a fabric body having a technical face formed by a filament stitch yam and a technical back formed by a filament loop yarn. The filament stitch yarn includes a heat sensitive material e.g. a hot melt material or a heat shrinkable material and/or an elastomeric material, such as spandex. The fabric body has a velour surface formed at both the technical back and the technical face. Raised fibers of at least one of the technical face and the technical back may be entangled including in and/ar through interstices of the fabric body toward the other of the technical face and the technical back e.g. by a hydroentanglement process applied after …

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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 October 16, 2002 and granted January 25, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 16, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 16, 2024.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 16, 2002
GrantedJanuary 25, 2011
Term endedOctober 16, 2022
Patent numberCA 2408687 C
Classification (IPC)D03D11/00 +2 more

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedOct 16, 2002Patent grantedJan 25, 2011Term endedOct 16, 2022

Sources & verification

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