Thymidine phosphorylase for use in the modulation of cellular proliferation or chemotaxis
CA 2121358 C · Owner: Novozymes Delta Limited · Inventors: Courtney, Michael George; Finnis, Christopher John Arthur; Sleep, Darrell
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A thymidine phosphorylase for use in medicine. The thymidine phosphorylase may be targeted to a selected location, for example by conjugating it to an antibody directed to a cell-specific antigen. The thymidine phosphorylase modulates cell growth and/or promotes chemotaxis. Cell growth can be increased for wound healing or decreased for tumour therapy.
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 October 15, 1992 and granted December 30, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 15, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 15, 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.