Polypeptide and protein derivatives and process for their preparation
CA 1341053 C · Owner: Offord, Robin Ewart · Inventors: Offord, Robin Ewart; Rose, Keith
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Protein and polypeptide derivatives and their salts are claimed characterized in that a protein or polypeptide is conjugated via an intermediate grouping containing at least one radical of the formula -C(R)=N- (or -N=C(R)-) or -CH(R)-NH- (or -NH-CH(R)-), wherein R is hydrogen or a hydrocarbon residue which may be substituted with the same, or a different protein or polypeptide with a reporter group, or a cytotoxic agent as well as a process for their preparation and the novel intermediates therefor.
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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
- Granted July 18, 2000. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 18, 2017.
- 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.