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Expired Canadian patentCanada

Anchor for guard rail system on structural grating floors

CA 2228070 C · Owner: Weber, Bert · Inventors: Weber, Bert

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

An anchor system for removably mounting a stanchion to a grating floor formed from spaced grating members comprising a plate having upper and lower surfaces a, mounting location on the upper surface for releasably supporting the stanchion, and at least one locking member extending from the lower surface to releasably lock the plate to the grating floor. The locking member is formed with an extension adapted for movement from a position that allows the extension to be introduced between and below the spaced grating member to a position in which extension engages beneath one or more grating members to lock the plate onto the grating floor.

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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

  • Filed January 26, 1998 and granted August 27, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 26, 2018.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 26, 2020.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 26, 1998
GrantedAugust 27, 2002
Term endedJanuary 26, 2018
Patent numberCA 2228070 C
Classification (IPC)E04H17/22 +2 more

Timeline

Timeline From CIPO dates

1999200120032005200720092011201320152017Application filedJan 26, 1998Patent grantedAug 27, 2002Term endedJan 26, 2018

Sources & verification

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