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Expired Canadian patentCanada

Rail road freight car

CA 2526554 C · Owner: Forbes, James W. · Inventors: Forbes, James W.; Bis, Tomasz; Al-Kaabi, Mohammed

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 rail road freight car may have a body for carrying lading. The body may be a gondola car , body. The car body may include a decking or floor structure and may include , longitudinally extending side beams bordering the floor structure. The connection of the side beams to the floor structure may be , may without the use of a dedicated side sill. The car body structure may include cross-bearers and side , beam stiffeners that are joined together by structural knees. The car body may also include clean out , ports to facilitate cleaning of the lading receptacle.

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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 November 10, 2005 and granted January 7, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 10, 2025.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 10, 2005
GrantedJanuary 7, 2014
Term endedNovember 10, 2025
Patent numberCA 2526554 C
Classification (IPC)B61D17/04 +2 more

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedNov 10, 2005Patent grantedJan 7, 2014Term endedNov 10, 2025

Sources & verification

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