Peptide fragments of cholera toxin b or enterotoxin b as vaccine adjuvants
CA 2338384 A1 · Owner: Williams, Neil Andrew · Inventors: Hirst, Timothy Raymond; Williams, Neil Andrew
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A substance is described. The substance comprises any one or more of: an amino acid sequence comprising the sequence presented as SEQ ID No. 2 or a variant , thereof, or a homologue thereof or a fragment thereof, or a derivative thereof, or a mimetic thereof; which substance is capable of acting in a manner that is the same as or is similar to EtxB and/or CtxB; but wherein the substance does not exhibit GM-1 binding activity.
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 September 7, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 7, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 7, 2021.
- 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.