Controlled excision
CA 1339799 C · Owner: Backam, Keith C. · Inventors: Backam, Keith C.; Balakrishnan, Ramaswamy
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Integrating a gene in a bacterial chromosome and controlling excision of the gene from the chromosome in response to an external stimulus, using DNA comprising: a) a vector that is incapable of replicating autonomously in the host and that includes the gene (or a site for the insertion of the gene) and an attachment site corresponding to an attachment site on the host chromosome; b) DNA capable of causing the integration of vector a) in the bacterial chromosome and DNA capable of causing the excision of that vector therefrom; and c) DNA capable of effecting control of excision of vector a) from the bacterial chromosome in response to an externally controlled stimulus.
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
- Granted April 7, 1998. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 7, 2015.
- 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.