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Expired Canadian patentCanada

Guide wheel assembly

CA 2312422 C · Owner: Strubelt, Holger · Inventors: Strubelt, Holger; Krause, Ralf; Kummeter, Stefan

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 guide wheel assembly (14), which can be preassembled as a single unit is , configured to be connectable to a guide frame (12) of a rail guided vehicle (10). The guide wheel assembly (14) generally includes a fixed component (18) connectable to the guide frame (12) and a rotating component (20) rotatably supported on the fixed component (18) by a bearing assembly (22). The elements of the fixed component (18), the rotating component (20) and the bearing assembly (22) are assembled on a shaft (24) of the fixed component (18) from a top or first end thereof. The shaft (24) includes a support member (40) secured at a second end of the shaft (24) and configured to prevent the rotating …

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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 October 1, 1999 and granted December 17, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 1, 2019.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 1, 2021.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 1, 1999
GrantedDecember 17, 2002
Term endedOctober 1, 2019
Patent numberCA 2312422 C
Classification (IPC)B61F9/00 +2 more

Timeline

Timeline From CIPO dates

2000200220042006200820102012201420162018Application filedOct 1, 1999Patent grantedDec 17, 2002Term endedOct 1, 2019

Sources & verification

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