Shark cartilage extracts and use thereof for immunomodulation
CA 2476126 A1 · Owner: Sing, Frank Chung-Yin · Inventors: Sing, Frank Chung-Yin; Kralovec, Jaroslav A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is a composition from shark cartilage comprising immunoactive proteoglycans and other immunoactive components having a molecular weight greater than about 100 KD, wherein the composition has a uronic acid content of about 0.05-0.5 µg glucuronic acid per µg of the composition. The composition may be useful for treating or preventing tumor growth bacterial , infections, viral infections and/or fungal infections.
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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 February 15, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 15, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 15, 2024.
- 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.