1,3-diaza-dibenzoazulenes as inhibitors of tumour necrosis factor production and intermediates for the preparation thereof
CA 2487017 A1 · Owner: Rupcic, Renata · Inventors: Pesic, Dijana; Mesic, Milan; Mercep, Mladen
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to 1,3-diaza-dibenzoazulene derivatives of formula (I), to their pharmacologically acceptable salts and solvates to , processes and intermediates for the preparation thereof as well as to their antiinflammatory effects, especially to the inhibition of tumour necrosis factor-.alpha. (TNF-.alpha.) production and the inhibition of interleukin-1 (IL-1) production as well as to their analgetic action.
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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 May 20, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 20, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 20, 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.