Rotavirus reassortant vaccine
CA 2065847 C · Owner: The Children'S Hospital Of Philadelphia · Inventors: Offit, Paul; Clark, H. Fred; Plotkin, Stanley A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides novel rotavirus. reassortants vaccines , employing the novel reassortants and methods for their preparation and administration. The reassortant contains the gene encoding the v.p.4 neutralization antigen of a selected human rotavirus and/or the gene encoding the v.p.7 neutralization antigen of a selected human rotavirus, with remaining genes being provided solely from the bovine rotavirus WC3 strain or from both the , human and bovine strains.
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 July 25, 1991 and granted February 12, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 25, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 25, 2013.
- 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.