Beta retinoic acid response elements compositions and assays
CA 2072644 A1 · Owner: Sucov, Henry M. · Inventors: Evans, Ronald M.; Sucov, Henry M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides transcriptional control regions expression vectors comprising said regions mammalian cells, transformed to transcribe and express genes from said vectors and, various methods of assaying compounds for hormone agonist or antagonist activity, all based on discovery of response elements of the .beta.-retinoic acid receptor and of the activation of said response elements in all mammalian cells without need to transform the cells to express the receptor independently of endogenous expression thereof.
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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 November 13, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 13, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 13, 2012.
- 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
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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.