Formulation comprising an active component, a microcapsule, and a dye which protects the active component from u.v. degradation
CA 2594628 C · Owner: The Central Science Laboratory (Csl) Representing The Secretary Of State For Environment, Food And Rural Affairs · Inventors: Nadian, Allan Kunamoney
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention provides a use of a dye for the protection of an active component contained within a microcapsule from U.V. degradation wherein the , dye , is Acid Orange 51, Acid Orange 63 Acid Orange 74, Bismark Brown R, Bismark Brown Y, Bromocresol Green, Chlorophenol Red Chrysoidin, Congo Red, m-crestol , Purple Crocein Orange G, Darrow Red, Direct Black 22 Ethyl Orange, Ethyl , Red, Mordant Brown 1 Mordant Brown 4, Mordant Brown 33, Mordant Brown 48 or Chocolate Brown. The active component may be a pharmaceutical a cosmetic or , an , agrochemical.
Read the whole patent
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, 2006 and granted July 2, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 19, 2026.
- 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.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.