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Expired Canadian patentCanada

Automatic storage and retrieval system

CA 2017054 C · Owner: Wilson, Jack S. · Inventors: Wilson, Jack S.

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 storage and retrieval system such as can be used as a parking bay structure is provided which comprises a skip hoist system and which includes a skip hoist shaft and a skip which is hoistable up and down the shaft. A plurality of parking bays are located around the skip hoist shaft. A pair of shuttles are located on the skip and are moveable relative to the skip for positioning vehicles on and removing vehicles from the parking bays. The shuttles are located on a rotunda on the skip which is rotatable about a vertical axis for rotating the shuttles to align the shuttles with the parking bays surrounding the skip hoist shaft.

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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 May 16, 1990 and granted August 10, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 16, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 16, 2012.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 16, 1990
GrantedAugust 10, 1999
Term endedMay 16, 2010
Patent numberCA 2017054 C
Classification (IPC)E04H6/12 +1 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedMay 16, 1990Patent grantedAug 10, 1999Term endedMay 16, 2010

Sources & verification

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