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Expired Canadian patentCanada

Apparatus and method for stacking

CA 1333180 C · Owner: Gould, Steven G. · Inventors: Hertel, James E.; Gould, Steven G.

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

Apparatus and method for stacking product such as flexible paper towels including a slotted wheel in combination with at least two endless chain conveyors equipped with finger assemblies which are orbitally offset so that while one finger assembly of one chain conveyor is accumulating a plurality of substacks, a first finger assembly of the other chain conveyor is being readied to take over the development of a successive stack, and programmable means associated with the chain conveyors for varying the finger assembly advance during different portions of the orbital movement of the finger assemblies.

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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 November 22, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 22, 2011.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 29, 1989
GrantedNovember 22, 1994
Term endedNovember 22, 2011
Patent numberCA 1333180 C
Classification (IPC)B65G57/03 +2 more

Timeline

Timeline From CIPO dates

19901993199619992002200520082011Application filedMay 29, 1989Patent grantedNov 22, 1994Term endedNov 22, 2011

Sources & verification

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