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Expired Canadian patentCanada

Settable mixture containing lime, a cementitious composition and a polymer

CA 2553228 C · Owner: Oppliger, Max · Inventors: Kothe, Thomas; Oppliger, Max

CIPO record

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Abstract From the Canadian patent

The present invention refers to a settable mixture comprising (i) a water absorbing composition and (ii) an aqueous emulsion of organic polymer or (iii) dispersible organic polymer, wherein the water absorbing composition (i) contains inorganic ingredients which are capable to react with water and the water absorbing composition (i) contains at least 13 weight % lime and at least 5 weight % of a cementitious composition of which components form ettringite during the absorbation of water and wherein the amount of the aqueous emulsion of organic polymer (ii) in relation to (i) is such as to provide a ratio of combined weight of polymer solids to combined weight of ingredients which …

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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 December 3, 2004 and granted June 5, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 3, 2024.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 3, 2004
GrantedJune 5, 2012
Term endedDecember 3, 2024
Patent numberCA 2553228 C
Classification (IPC)C04B28/06

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedDec 3, 2004Patent grantedJune 5, 2012Term endedDec 3, 2024

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