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Expired Canadian patentCanada

Motorized roller transverse drive

CA 2534652 C · Owner: Tasma, Ryan D. · Inventors: Ehlert, Ronald C.; Cotter, David H.; Tasma, Ryan D.

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 roller conveyor (10) includes a plurality of idler rollers (12) positioned along and between opposite sidewalls (14a 14b) and a transverse drive system , (16) operable to rotatably drive at least some of the idler rollers of the roller conveyer. The transverse drive system includes a motorized roller (18) positioned generally transverse to the idler rollers and a plurality of drive members (20) drivably connected between the motorized roller and respective ones of the idler rollers. Actuation of the motorized roller drives each of the drive members, which in turn independently rotatably drive the respective idler rollers. The transverse drive system may be selectively operable to …

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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 August 4, 2004 and granted December 10, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 4, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 4, 2026.
  • 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 4, 2004
GrantedDecember 10, 2013
Term endedAugust 4, 2024
Patent numberCA 2534652 C
Classification (IPC)B65G13/07 +1 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedAug 4, 2004Patent grantedDec 10, 2013Term endedAug 4, 2024

Sources & verification

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