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Expired Canadian patentCanada

Method of surveying, selecting, evaluating, or servicing the tires of vehicles

CA 1258913 A · Owner: The Goodyear Tire & Rubber Company · Inventors: Vanhoose, John S.

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 method of optimizing the operation of a vehicle or a fleet of vehicles by gathering data and utilizing, a computer (20). The data includes the number and type of tire positions per vehicle, the types of tires at each position and the cost of such types of tires. The computer (20) is used to optimize the operation by determining at least one of the following: the type of tire to be used at each position, the suitable tread depths for removal of tires from one tire position to another, a tire rotation sequence for the transfer of tires. This method further provides for gathering data by surveying a fleet of vehicles through the use of a portable hand held computer (50).

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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 August 29, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 29, 2006.
  • 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 13, 1987
GrantedAugust 29, 1989
Term endedAugust 29, 2006
Patent numberCA 1258913 A
Classification (IPC)G06Q10/00

Timeline

Timeline From CIPO dates

1988199019921994199619982000200220042006Application filedJan 13, 1987Patent grantedAug 29, 1989Term endedAug 29, 2006

Sources & verification

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