Asymmetric hammerhead ribozymes
CA 2250857 A1 · Owner: Mccall, Maxine J. · Inventors: Mccall, Maxine J.; Hendry, Philip
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention is directed to a compound having the formula (I) wherein N may , be a nucleotide, n is from 1-5 and n' is from 1-3. Such asymmetric ribozymes have higher than normal cleavage rates. The compound may be covalently linked to a delivery agent. The invention also includes a composition which comprises the compound in association with an acceptable carrier. The invention also includes a method of cleaving an RNA target sequence with the compound as described above. Further, a method of treating a disease in man or animals associated with a particular RNA which comprises administrating to the man or animal the compound. Further, the invention also includes a diagnostic …
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 2, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 2, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 2, 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.