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Expired Canadian patentCanada

Landscape timber building module

CA 1320347 C · Owner: Hasenwinkle, Earl D. · Inventors: Wislocker, Frank; Hasenwinkle, Earl D.

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A landscape timber building module is constructed preferably from a solid piece of wood with a predetermined length and width. At least two flat opposed, substantially parallel surfaces have a plurality of, uniformly spaced holes extending therethrough. Each end of the module is curved with a radius extending from approximately the centerline of the second hole inwardly from the end. The individual modules are then used preferably after being treated with a preservative compound as building, elements to form composite landscaping structures. Individual modules are interconnected by the use of pin connectors inserted through aligned holes in the modules.

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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 20, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 20, 2010.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 7, 1988
GrantedJuly 20, 1993
Term endedJuly 20, 2010
Patent numberCA 1320347 C
Classification (IPC)E02D29/02

Timeline

Timeline From CIPO dates

19891992199519982001200420072010Application filedOct 7, 1988Patent grantedJuly 20, 1993Term endedJuly 20, 2010

Sources & verification

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