Halomacrolides and derivatives having immunosuppressive activity
CA 2052885 A1 · Owner: Bochis, Richard J. · Inventors: Bochis, Richard J.; Wyvratt, Matthew J. Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Case 18090, TITLE OF THE INVENTION NEW HALOMACROLIDES AND DERIVATIVES HAVING IMMUNOSUPPRESSIVE ACTIVITY, ABSTRACT OF THE DISCLOSURE Novel C-3" and C-4" halogen-substituted macrolides of FK-506 type structural Formula I: I, 18/RJN6 - i - Case 18090, 31/RJN31, are described. These macrolide immunosuppressants are useful in a mammalian host for the treatment of autoimmune diseases (such as juvenile-onset diabetes melitus, multiple sclerosis and rheumatoid arthritis) infectious diseases and/or the prevention of rejection of foreign organ transplants, e.g. bone marrow and heart transplants. In addition, these macrolide immunosuppressants are useful in the topical treatment of inflammatory and …
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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 October 7, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 7, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 7, 2013.
- 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.