Therapeutic agent comprising a b-subunit of a protein toxin
CA 2434915 A1 · Owner: Ong, Kong Wee · Inventors: Ong, Kong Wee; Morgan, Andrew John; Wilson, Andrew Douglas
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A B-subunit of a protein toxin selected from the B-subunit ofE. coli heatlabile enterotoxin (EtxB) and the B-subunit of Vibrio cholerae toxin (CtxB) has a therapeutic effect against cell surface-expressed viral antigens and tumour antigens. In particular, the protein toxin may be used to treat an animal body, including human, suffering from a disease or condition associated with Epstein Barr Virus or suffering from neoplasia. The therapeutic agent may, additionally, comprise a cell surface-expressed antigen for instance an , Epstein Barr Virus latent membrane protein.
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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 December 11, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 11, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 11, 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
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.