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Expired Canadian patentCanada

Motorized tool for joining self adhesive plies of unvulcanized rubber

CA 1210678 A · Owner: Firestone Tire & Rubber Company (The) · Inventors: Schlemmer, Robert

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 motorized tool for joining self adhesive plies of unvulcanized rubber, the tool having a pincer-like structure provided with resilient means for urging a portion of a first arm of the pincer itself towards a portion of a second arm; the said portions supporting pairs of rolling bodies facing one another, and the rolling bodies carried by the said first arm being constituted by two discs converging towards one another and towards the other arm and provided with a peripheral crown of teeth meshing with one another, with one of said discs also meshing with an output pinion of a motor mounted within the said first arm.

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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 September 2, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 2, 2003.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 17, 1984
GrantedSeptember 2, 1986
Term endedSeptember 2, 2003
Patent numberCA 1210678 A
Classification (IPC)B29D30/38 +1 more

Timeline

Timeline From CIPO dates

1985198719891991199319951997199920012003Application filedJan 17, 1984Patent grantedSep 2, 1986Term endedSep 2, 2003

Sources & verification

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