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Expired Canadian patentCanada

Wall or panel connector and panels therefor

CA 1089620 A · Owner: Toews, Norman J. · Inventors: Toews, Norman J.

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

Substantially rectangular panels are provided with claw engaging means along two opposing edges which are snap engageable within resilient claw ends formed on the opposite side edges of an elongated connector web thus holding the panels in spaced and parallel relationship. If the spacing is relatively wide, then a stiffening panel can be slidably engaged from the ends of the pairs of opposed panels. The web has jaws formed on each side thereof intermediate the ends of the web and the stiffener panel has T-shaped opposing edges slidably engageable with the jaws. The cavities defined by the webs and/or stiffening panels can be insulated by loose fill or by foam.

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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 18, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 18, 1997.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 5, 1979
GrantedNovember 18, 1980
Term endedNovember 18, 1997
Patent numberCA 1089620 A
Classification (IPC)E04B2/72

Timeline

Timeline From CIPO dates

198019821984198619881990199219941996Application filedMarch 5, 1979Patent grantedNov 18, 1980Term endedNov 18, 1997

Sources & verification

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