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Expired Canadian patentCanada

Method and apparatus for forming reinforced concrete walls with continuous steel reinforcement

CA 1262054 C · Owner: Ressi Di Cervia, Arturo L. · Inventors: Ressi Di Cervia, Arturo L.

CIPO record

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Abstract From the Canadian patent

This invention relates to method and apparatus for forming reinforced concrete walls with continuous steel reinforcements. The invention is basically an improvement on the process disclosed in Veder U.S. Patent 3.310.952. The process includes the forming of a plurlaity of concrete panels each, panel having a reinforcing cage extending to proximate the joint between the concrete panels and one or more expansible joint reinforcing cages bridging the gap between the reinforcing cages are carried in carrier means in the end stop pipe. Each expansible joint reinforcing cage is comprised of a vertical support bar having secured thereto a plurality of horizontally extending concrete anchor members …

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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 October 3, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 3, 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.
FiledApril 2, 1985
GrantedOctober 3, 1989
Term endedOctober 3, 2006
Patent numberCA 1262054 C
Classification (IPC)E02D5/20 +2 more

Timeline

Timeline From CIPO dates

1986198919921995199820012004Application filedApril 2, 1985Patent grantedOct 3, 1989Term endedOct 3, 2006

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