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Expired Canadian patentCanada

Fiber material having improved malodor scavenger properties

CA 2536800 C · Owner: Beaverson, Neil · Inventors: Wood, Will; Beaverson, Neil

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

The invention relates to fiber materials having improved malodor scavenger properties and a process for the manufacture of said materials. The invention especially relates to fiber materials usable in the manufacture of disposable or washable diapers, incontinent products sanitary napkins and other such , hygiene and personal care articles with improved malodor scavenger properties and to methods of manufacturing such materials. It has been found that the incorporation of, especially nanosized metal particles and/or a cyclodextrin material into fibers creates a "reactive" material having excellent malodor scavenging properties. More specifically it has been found that the presence , …

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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 September 3, 2004 and granted August 7, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 3, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 3, 2026.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 3, 2004
GrantedAugust 7, 2012
Term endedSeptember 3, 2024
Patent numberCA 2536800 C
Classification (IPC)D01F1/10 +2 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedSep 3, 2004Patent grantedAug 7, 2012Term endedSep 3, 2024

Sources & verification

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