Compositions of restricted cells capable of rapid growth which produce proliferation suppressive materials, and uses thereof
CA 2334483 C · Owner: Smith, Barry · Inventors: Asina, Shirin; Jain, Kanti; Rubin, Albert L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Compositions of matter are described which contain restricted proliferative cells. When so restricted, the cells produce an unexpectedly high amount of material which suppresses cell proliferation. The phenomenon crosses cell type and species lines. Processes for making these compositions and their use, are , also described.
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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 November 9, 1999 and granted January 10, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 9, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 9, 2021.
- 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
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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.