6-phenylpyrrolopyrimidinedione derivatives
CA 2411013 A1 · Owner: Gracia Ferrer, Jordi · Inventors: Vidal Juan, Bernat; Vega Noverola, Armando; Prieto Soto, Jose Manuel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to new 6-phenylpyrrolopyrimidine derivatives of formula (I): wherein -X-C-Y- represents (A) or -X-C-Y- represents (B) and to their use as selective cyclic GMP specific phosphodiesterase (PDE 5)inhibitors processes for producing them, intermediates used in their production compositions containing them and their applicability in medical treatment of the human or animal body.
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 June 1, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 1, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 1, 2023.
- 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.