Carboxylic acid compound and a pharmaceutical agent comprising the compound as an active ingredient
CA 2479352 A1 · Owner: Ono Pharmaceutical Co. Ltd. · Inventors: Iwahashi, Maki; Kobayashi, Kaoru; Nambu, Fumio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Carboxylic acid compounds represented by the following general formula (I) (wherein each symbol is as defined in the description) and drugs containing these compounds: (I) Because of binding to DP receptor and antagonizing the same, the compounds represented by the general formula (I) are useful in preventing and/or treating allergic diseases (allergic nephritis allergic , conjunctivitis, atopic dermatitis bronchial asthma, food allergy, etc.), systemic mast cell disease systemic mast cell activation failure, anaphylactic shock respiratory tract contraction, urticaria eczema, diseases , associated with itch (atopic dermatitis urticaria, etc.), diseases (cataract, retinal detachment …
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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 March 6, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 6, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 6, 2025.
- 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.