Multigene vectors
CA 2323112 A1 · Owner: Chada, Sunil · Inventors: Zumstein, Louis A.; Almond, Brian D.; Chada, Sunil
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention is directed to the use of particular gene combinations in genetic therapy. Delivery of multiple genes to a target cell at the same time augments the action of one or both genes. This is particularly effective in attacking diseased cells such as those making up hyperplastic or neoplastic tissues. Classes of genes that may be used in combination are tumor suppressors, cytokines and lymphokines toxins, inducers of apoptosis, antisense oncogenes single-chain antibodies, ribozymes, transcription factors and regulators, cell cycle regulators and enzymes.
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 March 16, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 16, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 16, 2021.
- 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.