Hydroxamic acid derivatives
CA 2481879 A1 · Owner: Janser, Philipp · Inventors: Janser, Philipp; Miltz, Wolfgang; Neumann, Ulf
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Novel hydroxamic acid derivatives, e.g. of formula (I) wherein R1, R2, R3 , and R4 are as defined are found to be useful as pharmaceuticals e.g. for , the suppression of TNF release and the treatment of autoimmune and inflammatory diseases, e.g. multiple sclerosis and rheumatoid arthritis. Methods of making the compounds, novel intermediates and pharmaceutical , compositions comprising the compounds are provided.
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 April 8, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 8, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 8, 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.