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Expired Canadian patentCanada

Method of rebelting radial tires

CA 1264515 C · Owner: Sorenson, Billy Lee · Inventors: Graves, Thomas Wayne; Sorenson, Billy Lee; Lacy, Floyd Andrew

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

This invention is directed to the retreading of steel belted radial tires by removing and replacing more than the protector ply. Initially, the tire is inspected to determine if it is retreadable. The tire is then buffed so that the protector ply will be located and removed. The first working belt is then located and removed. A steel belt incapulated in uncured rubber will be placed on the tire. Then wedge stock will be applied isolating the replacement belt. A second replacement belt will be applied for the protector ply with the steel cords going in the opposite direction Or the first replacement belt applied. Precured tread rubber will be applied to the casing surface in the usual …

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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

  • Granted January 23, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 23, 2007.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 30, 1986
GrantedJanuary 23, 1990
Term endedJanuary 23, 2007
Patent numberCA 1264515 C
Classification (IPC)B29D30/54 +1 more

Timeline

Timeline From CIPO dates

1987199019931996199920022005Application filedJan 30, 1986Patent grantedJan 23, 1990Term endedJan 23, 2007

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