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Expired Canadian patentCanada

Metal chain-belt

CA 1255120 A · Owner: Borg-Warner Corporation · Inventors: Mott, Philip J.

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

IMPROVED METAL CHAIN-BELT, ABSTRACT:, An endless power transmission chain-belt (31,61) constructed of fined sets of links (33,34) and blocks (43,44,63,67) surrounding sets of links the links (34) in some sets having a pitch (b) larger than links (33) in other sets. Some blocks (43,63) are of such width to engage pulley flanges of a pulley transmission while other blocks (44,67) are of a lesser width to "skip" the flange engagement. The latter blocks can be omitted if desired.

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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 June 6, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 6, 2006.
  • 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 13, 1985
GrantedJune 6, 1989
Term endedJune 6, 2006
Patent numberCA 1255120 A
Classification (IPC)F16G5/18

Timeline

Timeline From CIPO dates

1986198919921995199820012004Application filedNov 13, 1985Patent grantedJune 6, 1989Term endedJune 6, 2006

Sources & verification

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