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Expired Canadian patentCanada

Assembly of structural modules for retaining walls and the like

CA 1262053 C · Owner: Crinnion, Edward V. · Inventors: Crinnion, Edward V.; Crinnion, James S.

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

of the Invention, A prefabricated concrete module and a composite wall structure comprised of an assembly of modules where the module, comprises a generally rectangular front and rear panel joined, by at least one generally trapezoidal partition means. A cellular wall structure is formed by stacking the modules and aligning the partition means on top of each other thereby, forming bins which contain loose material contributing to the weight of the structure. Provisions can be made for slabs which span longitudinally across partition means to be positioned upon or between partition means of vertically contiguous modules. These slabs which capture an additional amount of loose material, can …

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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.
FiledFebruary 8, 1985
GrantedOctober 3, 1989
Term endedOctober 3, 2006
Patent numberCA 1262053 C
Classification (IPC)E02D5/20 +2 more

Timeline

Timeline From CIPO dates

1986198919921995199820012004Application filedFeb 8, 1985Patent grantedOct 3, 1989Term endedOct 3, 2006

Sources & verification

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