Viral vectors
CA 2533338 C · Owner: Coffin, Robert Stuart · Inventors: Coffin, Robert Stuart; Simpson, Guy Richard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides a herpes virus which lacks a functional ICP34.5 encoding gene and which comprises two or more of- (i) a gene encoding a prodrug converting enzyme; (ii) a gene encoding a protein capable of causing cell to cell fusion; and (iii) a gene encoding an immunomodulatory protein.
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 July 26, 2004 and granted May 8, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 26, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 26, 2026.
- 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.