Prrsv antigenic sites identifying peptide sequences of prrs virus for use in vaccines or diagnostic assays
CA 2703181 C · Owner: Stichting Dienst Landbouwkundig Onderzoek · Inventors: Langeveld, Jan; Van Nieuwstadt, Antonie Paul; Meulenberg, Janneke
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention provides antigenic sites of PRRSV isolates. The antigenic sites are neutralizing conserved, non-conserved and conformational can elicit antibodies and are found on protein GP4 and N encoded by ORF4 and ORF7 of PRRSV. The peptide sequences identified by the sites can be incorporated in vaccines directed against PRRS and in diagnostic tests for PRRS. Also discriminating tests can be developed that can be used next to marker vaccines in programs designed to eradicate PRRS from pig herds.
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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 May 5, 1998 and granted June 28, 2016. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 5, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 5, 2020.
- 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.