Vaccine composition containing polyribosylribitol phosphate and method for making same
CA 2218764 C · Owner: Cartier, Jean-Rene · Inventors: Arminjon, Francois; Cartier, Jean-Rene
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A vaccine composition containing one or more antigens comprising the high molecular weight capsular polysaccharide of type b Haemophilus influenza or polyribosylribitol phosphate, coupled to the tetanus toxoid and an aluminium-based adjuvant wherein the aluminium-based adjuvant has in its natural state, or following anion addition a zero point of charge of less than about 7.2. A method for making said vaccine composition is also described.
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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 24, 1996 and granted January 11, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 24, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 24, 2018.
- 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
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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.