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Expired Canadian patentCanada

Mold for producing tile-shaped floor elements for forming a double floor construction and a corresponding tile-shaped floor element

CA 1304594 C · Owner: Cremer, Gottfried · Inventors: Bard, Martin; Cremer, Gottfried

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

Tile-shaped floor elements for a double floor construction are produced with a mold consisting of a trough made of a material with high tensile strength and a ceramic cover tile closing the trough at the top and firmly connected with the trough via a connecting element. A flowable core layer is poured into this mold via openings in the bottom of the trough and hardens to form a firm compound between the trough and the core layer, on the one hand and, the core layer and the ceramic cover tile on the, other. In the production of this floor tile the, mold, in its totality, forms part of the finished floor element.

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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 7, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 7, 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.
FiledSeptember 27, 1988
GrantedJuly 7, 1992
Term endedJuly 7, 2009
Patent numberCA 1304594 C
Classification (IPC)E04F19/02 +2 more

Timeline

Timeline From CIPO dates

1989199219951998200120042007Application filedSep 27, 1988Patent grantedJuly 7, 1992Term endedJuly 7, 2009

Sources & verification

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