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Expired Canadian patentCanada

Floor grid system

CA 2015741 C · Owner: Taylor, John R. · Inventors: Taylor, John R.

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

of the Invention, A floor assembly for a building structure includes a plurality of support members defining a horizontal perimeter supported by the building structure. A grid formed of a plurality of horizontal grid members extends between the support members. Pocket surfaces on adjoining ones of the grid members define pockets for glass blocks. The glass blocks define horizontal glass floor surface supported by the grid members, with the grid members being supported by the support members.

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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 April 30, 1990 and granted June 14, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 30, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 30, 2012.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 30, 1990
GrantedJune 14, 1994
Term endedApril 30, 2010
Patent numberCA 2015741 C
Classification (IPC)E04B5/00 +2 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedApril 30, 1990Patent grantedJune 14, 1994Term endedApril 30, 2010

Sources & verification

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