Anti-irritant compositions containing a cyclic 2'-deoxy-nucleotide
CA 2336362 A1 · Owner: Goyarts, Earl C. · Inventors: Muizzuddin, Neelam; Goyarts, Earl C.; Mammone, Thomas
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 cosmetic or pharmaceutical topical compositions containing at least one cyclic nucleotide having its 2' hydroxyl group replaced by a hydrogen atom for inhibiting phosphodiesterase activity. The phosphodiesterase inhibitor is in combination with a magnesium buffer and a cosmetically or pharmaceutically acceptable carrier. The invention also includes methods for treating or preventing inflammation or irritation such as is common in the skin disease, atopic dermatitis which is known to be related , to the uncontrolled activity of phosphodiesterase.
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 February 15, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 15, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 15, 2022.
- 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.