Mixed haptenized tumor cells and extracts and methods of treating or screening for cancer
CA 2474960 A1 · Owner: Berd, David · Inventors: Berd, David
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to compositions comprising multi-haptenized tumor cells and extracts thereof, methods for preparing the compositions vaccines , comprising such multi-haptenized tumor cells and methods for treating cancer , with such vaccines. In a specific embodiment melanoma and ovarian , adenocarcinoma cells are multi-haptenized wherein the tumor cells are , differentially haptenized either with a dinitrophenyl group coupled to .epsilon.-amino groups, or with a sulfanilic acid group coupled to aromatic side chains of histidine and tyrosine. A method of SA-haptenization is also provided.
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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 3, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 3, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 3, 2025.
- 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.