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Expired Canadian patentCanada

Anti-tip apparatus for mobile storage units

CA 2015145 C · Owner: Spacesaver Corporation · Inventors: Muth, James C.

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

An anti-tip mechanism for a mobile storage system. The system includes movable carriages each, having a pair of wheels journaled to the carriage frame, and adapted to be moved alone tracks on a building floor. The anti-tip mechanism includes a pair of catch rails adjacent to and co-extensive with the tracks. Each catch rail includes an upper horizontal portion projecting toward the track supported, by an upright support member. Two hook plates are spaced apart and attached to the carriage frame for each of the catch rails. Each hook plate has a lower leg projecting beneath the top horizontal portion of the respective catch rail. The attachment of each hook plate to the carriage frame is …

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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 23, 1990 and granted November 28, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 23, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 23, 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.
FiledApril 23, 1990
GrantedNovember 28, 2000
Term endedApril 23, 2010
Patent numberCA 2015145 C
Classification (IPC)A47B53/00 +1 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedApril 23, 1990Patent grantedNov 28, 2000Term endedApril 23, 2010

Sources & verification

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