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Expired Canadian patentCanada

Method of controlling an elevator

CA 1259719 A · Owner: Kone Elevator Gmbh · Inventors: Otala, Matti

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 procedure for entering into an elevator control computer information specific to a particular installation of an elevator provided with operating devices capable of data transfer includes employing a computer test programme to map elevators used in the particular installation and their positions by sending out a query round to addresses which are tabulated in the computer and which represent all possible operating devices, and by inferring the kind and number of the action means present in the installation on the basis of the answers received in the query round. During a test travel of the elevator, by activating and reading the devices the location of the devices, the geometry of 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

  • Granted September 19, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 19, 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.
FiledAugust 25, 1986
GrantedSeptember 19, 1989
Term endedSeptember 19, 2006
Patent numberCA 1259719 A
Classification (IPC)B66B1/00 +2 more

Timeline

Timeline From CIPO dates

1987198919911993199519971999200120032005Application filedAug 25, 1986Patent grantedSep 19, 1989Term endedSep 19, 2006

Sources & verification

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