Cellular signal-responsive gene transcriptional regulation system
CA 2447538 C · Owner: Japan Science And Technology Agency · Inventors: Katayama, Yoshiki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A gene complex-forming material which comprises a water-soluble polymer having a peptide containing an amino acid sequence serving as the substrate of an , intracellular signal-responsive enzyme and basic amino acids imparting cationic nature; , a gene complex composed of this gene complex-forming material with a gene; and a , gene transfer method and a gene transfer agent with the use of the same. Namely, a , novel material and a method wherein the cationic moiety of the peptide and the gene , form a rigid ion complex to give a stable gene complex and, upon a cellular , signal , response the positive charge of the cationic moiety of the peptide is neutralized or , disappears and the …
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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 16, 2001 and granted October 11, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 16, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 16, 2023.
- 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
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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.