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Expired Canadian patentCanada

Antifouling coating composition and its use on man made structures

CA 2555057 C · Owner: Finnie, Alistair Andrew · Inventors: Sinclair-Day, John David; Finnie, Alistair Andrew; Solomon, Trevor

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Abstract From the Canadian patent

Antifoulding coating composition comprising 20-100% by weight calculated on , the total amount of film-forming components of a film-forming polymer (A) , having an acrylic backbone bearing at least-one terminal group of the formula (I), wherein X represents (II), M is a metal of Group Ib IIa, IIb, IIIa, IIIb, Iva, Ivb, Va, Via VIb, VIIa, and VIII of the Periodic Table with a valency of 2 or more and a degree of ionization less than that of the alkali metals metal; n is an integer of 1 to 2; R represents an organic residue selected from (III), and R1 is a monovalent organic residue and 80-0% by , weight, calculated of polymer (B) a copper-based biocide for aquatic organisms …

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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 19, 2005 and granted December 31, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 19, 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.
FiledJanuary 19, 2005
GrantedDecember 31, 2013
Term endedJanuary 19, 2025
Patent numberCA 2555057 C
Classification (IPC)C09D5/16

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedJan 19, 2005Patent grantedDec 31, 2013Term endedJan 19, 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.