Detection of dna damaging agents
CA 2285703 C · Owner: Walmsley, Richard Maurice · Inventors: Walmsley, Richard Maurice; Heyer, Wolf Dietrich
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Recombinant DNA molecules comprising a regulatory element that activates gene expression in response to DNA damage operatively linked to a DNA sequence that encodes a light emitting reporter protein recombinant vectors containing such DNA molecules and cells containing the DNA molecules or recombinant vectors. A method of detecting for the presence of an agent that causes or potentiates DNA damage is also disclosed which involves subjecting the above-described cells to a putative DNA damaging agent and monitoring the expression of the light emitting reporter protein from the cells.
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 March 27, 1998 and granted February 8, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 27, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 27, 2020.
- 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.