Bifunctional genetic markers
CA 2107916 C · Owner: Crosby, William L. · Inventors: Hammerlindl, Joe K.; Selvaraj, Gopalan; Datla, Raju S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Genetic markers of this invention provide a biochemically assayable reporter activity and a conditionally selectable growth advantage. They comprise a first gene which encodes a product whose activity can be assayed biochemically e.g. .beta.-glucuronidase to a second gene which confers a, conditional growth advantage such as antibiotic resistance in a transformed cell (e.g. neomycin phosphotransferase-II). The marker genes and their translational products are stable in cells. The genetic markers provide for the positive genetic selection and the biochemical and histochemical screening of transformed cells. They can be used as probes for identification and isolation of novel genetic …
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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 March 30, 1992 and granted August 17, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 30, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 30, 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.