Retroviral vectors containing internal ribosome entry sites
CA 2114416 C · Owner: Couture, Larry · Inventors: Morgan, Richard A.; Couture, Larry; Anderson, W. French
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a viral vector capable of integrating into a host genome and expressing multiple exogenous proteins which has a single promoter and is transcribed into a single polycistronic mRNA by means of internal ribosome entry sites between DNA sequences coding for discrete proteins instead of internal promoters between the DNA sequences.
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 August 6, 1992 and granted July 7, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 6, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 6, 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.