Delivery construct for antisense nucleic acids and methods of use
CA 2270901 A1 · Owner: The Johns Hopkins University School Of Medicine · Inventors: Dietz, Harry C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A novel nucleic acid construct for delivery of antisense targeting sequences is provided. The construct includes intact stem loop structures and an antisense nucleic acid. Optionally, a ribozyme nucleic acid is included in the construct. The construct is useful for inhibition of selected genes in a cell. This allele-specific targeting is also useful in combination with replacement gene therapy.
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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 31, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 31, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 31, 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.