Coating compositions
CA 2039405 C · Owner: Valet, Andreas · Inventors: Valet, Andreas
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Coating compositions which, in addition to a 2-hydroxyphenylbenzotriazole UV absorber, also contain a UV absorber belonging to the group of the 2hydroxyphenyltriazines, 2-hydroxybenzophenones and/or the oxanilides and/or, in addition to a, 2-hydroxyphenyltriazine also contain a 2-hydroxybenzophenone and/or oxanilide are, described.
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 March 28, 1991 and granted April 30, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 28, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 28, 2013.
- 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.