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Expired Canadian patentCanada

Solid work machine tire with resilient body

CA 2565434 C · Owner: Mathew, Sunil I. · Inventors: Grinberg, Eugene Y.; Becker, Dan J.; Mathew, Sunil I.

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

A work machine tire (10) includes an annular body (11) of elastomeric material that includes a middle radial region (12). A plurality of unpressurized cavities are defined by the middle radial region and are distributed in a pattern that includes a first radial band of cavities (16) and a second radial band of cavities (17). Each cavity of the first radial band of cavities (16) is oriented at a positive angle with respect to a radius therethrough and , each cavity of the second radial band of cavities (17) is oriented at a negative angle with respect to a radius therethrough. A material volume of the middle radial region (12) is more than one and a half times greater than the …

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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 April 11, 2005 and granted July 23, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 11, 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.
FiledApril 11, 2005
GrantedJuly 23, 2013
Term endedApril 11, 2025
Patent numberCA 2565434 C
Classification (IPC)B60C7/10 +1 more

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedApril 11, 2005Patent grantedJuly 23, 2013Term endedApril 11, 2025

Sources & verification

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