Retroviral vectors comprising an enhanced 3' transcription termination structure
CA 2408786 C · Owner: Barcova, Maria · Inventors: Barcova, Maria; Cannon, Paula Marie
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention provides novel retroviral vectors that have enhanced transcription , termination structures. The termination structures comprise one or several heterologous upstream transcription termination enhancer (UE) sequences or , one or , more additional copies of endogenous UE sequences operably associated with the 3' , LTR polyadenylation signal. The retroviral vectors of the invention have various , improved properties over conventional vectors including stronger gene , expression, enhanced vector titer and reduced interference with host cell gene expression resulting , from read-through of vector initiated transcriptional events.
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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 14, 2001 and granted May 29, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 14, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 14, 2023.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.