Nonclassical pyrrolo2,3-dpyrimidine antifolates
CA 2263907 A1 · Owner: Soose, Daniel Jon · Inventors: Soose, Daniel Jon; Jordan, Christopher Leighon; Patel, Vinod Francis
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Nonclassical pyrrolo2,3-dpyrimidine antifolates are described and claimed. Also described and claimed is a rapid analog process which enables a quick work-up of the antifolate which avoids costly and time-consuming chromatographic separation techniques. Also described and claimed are methods of treating susceptible neoplasms with these nonclassical antifolates. Also described and claimed are methods of treating psoriasis and arthritis with these nonclassical antifolates.
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 August 27, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 27, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 27, 2019.
- 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.