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Expired Canadian patentCanada

Thiol ester compositions and processes for making and using same

CA 2556586 C · Owner: Matson, Michael S. · Inventors: Xing, Baozhong; Solaas, Dale M.; Hasenberg, Daniel M.

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Abstract From the Canadian patent

Thiol ester compositions, methods of making the thiol ester compositions and , methods of using the thiol ester compositions are provided. In some embodiments, the thiol ester compositions include thiol esters hydroxy thiol , esters and cross-linked thiol esters. The thiol ester composition can be used to produce cross-linked thiol esters, sulfonic acid-containing esters sulfonate containing esters and thiocrylates containing esters. The thiol ester composition can be used to produce polythiourethanes. The polythiourethanes can be used in fertilizers and fertilizer coatings.

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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 February 17, 2005 and granted September 11, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 17, 2025.
  • 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.
FiledFebruary 17, 2005
GrantedSeptember 11, 2012
Term endedFebruary 17, 2025
Patent numberCA 2556586 C
Classification (IPC)C05G5/00 +2 more

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedFeb 17, 2005Patent grantedSep 11, 2012Term endedFeb 17, 2025

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