Additive mixtures
CA 2539779 C · Owner: Van De Langkruis, Judy · Inventors: Stoll, Klaus; Hirt, Urs; Van De Langkruis, Judy
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An additive mixture containing the components (A) (B) and optionally (C), wherein component (A) is at least one compound of the formula (I) wherein p is zero or 1; m and n are independently of one another an integer from zero to 3; and the radicals R are independently of one another C1-C8alkyl C1-C8alkoxy, hydroxy, halogen, C1-C8alkylthio C1-C8alkylsulfoxy or 2 radicals R form together with 2 adjacent carbon atoms of the unsaturated parent ring a 5- to 7membered carbocyclic or heterocyclic ring; component (B) is at least one compound of the formula (II) wherein x and y are independently of one; another an integer from 2 to 10; the radicals A1 A2 and A3 are independently of one , …
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 September 22, 2004 and granted August 28, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 22, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 22, 2026.
- 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.