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Expired Canadian patentCanada

Tile making machines

CA 1255244 A · Owner: Marley Tile A.G. · Inventors: Brittain, David R.

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

Tile making machines, Apparatus for propelling a succession of pallets in a longitudinal direction has a plurality of pawls 16 for pushing the pallets and spaced apart on a pair of endless drive chains 2 each having a portion extending parallel to a pallet guide means. Each pawl 16 is arranged to move in such a way that in use it engages one of the pallets to push it along the guide means and disengages from the pallet further down the guide means the, movement of each pawl being controlled by en associated cam follower wheel 17 cooperating with one of a pair of longitudinally extending cam tracks 4 and 5, The cam follower wheel 17 can be laterally moved on a shaft 8 to select the …

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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 19, 1986
GrantedJune 6, 1989
Term endedJune 6, 2006
Patent numberCA 1255244 A
Classification (IPC)B65G49/00 +2 more

Timeline

Timeline From CIPO dates

1987198919911993199519971999200120032005Application filedNov 19, 1986Patent 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.