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Expired Canadian patentCanada

Method of fabricating a power transmission belt and apparatus therefor

CA 1298070 C · Owner: Nagata, Akihiro · Inventors: Nagata, Akihiro; Fukuda, Misao; Kamiyama, Yoshihiko

CIPO record

Overview

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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 power transmitting belt manufacture wherein belts are molded to have various cross sections. The belts are machined to a desired cross section. Each belt is entrained about drive and driven pulleys to run the belt under a preselected tension. At least one roller is caused to engage the back surface of the driven belt to reinforce the otherwise unsupported belt at the point of cutting between drive and driven pulleys. A pair of opposed cutting blades are engaged with the opposite sides of the belt to form the opposite side edges of the final belt section. An apparatus is disclosed for fabricating such a power transmitting belt which has a belt feeder for placing the belt over a drive …

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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

  • Granted March 31, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 31, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 24, 1987
GrantedMarch 31, 1992
Term endedMarch 31, 2009
Patent numberCA 1298070 C
Classification (IPC)B29D29/10 +2 more

Timeline

Timeline From CIPO dates

19881991199419972000200320062009Application filedMarch 24, 1987Patent grantedMarch 31, 1992Term endedMarch 31, 2009

Sources & verification

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