Dna sequences encoding gelonin polypeptide
CA 2115049 C · Owner: Rosenblum, Michael G. · Inventors: Beattie, Kenneth L.; Rosenblum, Michael G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides the nucleotide sequence for a synthetic gene for the plant toxin gelonin and a process for producing, cloning and expressing this synthetic gene. The DNA sequence for a synthetic gene for gelonin as shown in sequence ID No. 1. The present invention also provides expression vectors containing the DNA sequences for gelonin and cells transformed with these vectors. In addition an immunotoxin comprising an antibody conjugated to the protein gelonin.
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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 August 21, 1992 and granted October 21, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 21, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 21, 2014.
- 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.