Vaccine
CA 2079870 A1 · Owner: Biotech Australia Pty Limited · Inventors: Wagland, Barry Maxwell; Sharp, Phillip John; Cobon, Gary Stewart
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A substantially purified antigen derived from a first species of parasitic nematodes, which antigen is capable of providing protection to a host from parasitism by a second nematode species which may be the same as or different from the first nematode species, following vaccination of the host with the antigen characterized in that the antigen is proteinaceous has a pI between 3.8 and, 4.4, can be bound by lentil lectin and Helix promatia lectin and has a molecular weight of approximately 45 kD as determined by SDS-PAGE.
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 February 6, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 6, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 6, 2014.
- 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.