Cd46 variants
CA 2082277 A1 · Owner: Purcell, Damien F. J. · Inventors: Mckenzie, Ian F. C.; Purcell, Damien F. J.; Russell, Sarah M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
2082277 9118097 PCTABS00008, CD46 (membrane cofactor protein) is a family of human cell surface glycoprotein with cofactor activity for factor I mediated cleavage of complement components C3b and C4b. Disclosed are novel nucleic acid sequences arising from splice variants or derivatives thereof of the structural gene encoding the family of proteins. From these sequences recombinant derived proteins and antibodies thereto can be produced. The proteins can resemble native CD46 isoforms or comprise new permutations of exons within the structural gene. The nucleic acids, proteins and antibodies have utility as probes, diagnostic reagents and therapeutic agents.
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 May 10, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 10, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 10, 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.