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Expired Canadian patentCanada

Antimicrobial treatment of nonwoven materials for infection control

CA 2619446 C · Owner: Hoffman, Douglas R. · Inventors: Yahiaoui, Ali; Koenig, David William; Schorr, Phillip A.

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

A material substrate having at least part of a surface treated with an antimicrobial composition is described. The antimicrobial composition exhibits at least a 3 log10 CFU reduction within a period of about 30 minutes after contact with various species of a broad spectrum of microorganisms. The substrate can be a nonwoven material that has good fluid barrier properties which can be used in protective garments and sheets. Methods for manufacturing and imparting the antimicrobial treatment to the substrate are also provided.

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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 August 31, 2006 and granted June 17, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 31, 2026.
  • 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.
FiledAugust 31, 2006
GrantedJune 17, 2014
Term endedAugust 31, 2026
Patent numberCA 2619446 C
Classification (IPC)C08K5/00 +2 more

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedAug 31, 2006Patent grantedJune 17, 2014Term endedAug 31, 2026

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