Protective antigens against parasites
CA 2172492 A1 · Owner: Ashman, Keith · Inventors: Ashman, Keith; Walker, John A.; Meeusen, Elza Nicole Theresia
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A putative protective antigen or fragment thereof against infections selected from the group consisting of Ostertagia circumcincta Trichostrongylus colubriformis and Fasciola hepatica or related infections being antigens selected from antigens having approximate molecular weights in the region of 26-36 and 91-105 kilodaltons an antigen having an approximate molecular weight of 32-35 kilodaltons and antigens having approximate molecular weights in the region of 28 kilodaltons 32 kilodaltons, 37 kilodaltons, 42 to 100 kilodaltons 54 to 55 kilodaltons and > 200 kilodaltons respectively.
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 27, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 27, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 27, 2016.
- 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.