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Expired Canadian patentCanada

Plastic snow fence system

CA 1300949 C · Owner: Sura, Andrew · Inventors: Sura, Andrew

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

A snow fence system utilizes horizontal plastic slat fence elements of a wide plastic ribbon supported in uniformly spaced relation by fence posts equipped with ribbon attachment ears. The spacing between the slats maybe substantially equal to the slat widths, and the post attachment cleat permit attachment of the fence elements in self-binding relation, with individual tensioning of the slat span from post to post. The system offers a superior type of snow fence at significant cost savings in both material and labour.

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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 May 19, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 19, 2009.
  • 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 2, 1989
GrantedMay 19, 1992
Term endedMay 19, 2009
Patent numberCA 1300949 C
Classification (IPC)E01F7/02

Timeline

Timeline From CIPO dates

1990199219941996199820002002200420062008Application filedMarch 2, 1989Patent grantedMay 19, 1992Term endedMay 19, 2009

Sources & verification

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