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Expired Canadian patentCanada

Inter locking modular elements

CA 1208031 A · Owner: Karnick, Pandharinath D. · Inventors: Karnick, Pandharinath D.

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

Interlocking modular elements for use in combination with each other wherein the elements are identical to one another and wherein an element consists of a central body; two opposing side faces, the faces having identical projections located on each face forming recesses for engagement of identical projections from another element.

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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 July 22, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 22, 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.
FiledMay 7, 1985
GrantedJuly 22, 1986
Term endedJuly 22, 2003
Patent numberCA 1208031 A
Classification (IPC)E04B1/04

Timeline

Timeline From CIPO dates

198619881990199219941996199820002002Application filedMay 7, 1985Patent grantedJuly 22, 1986Term endedJuly 22, 2003

Sources & verification

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