Radiopharmaceutical products and their preparation procedure
CA 2383517 A1 · Owner: Bellande, Emmanuel · Inventors: Bellande, Emmanuel; Denizot, Benoit; Jallet, Pierre
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to radiopharmaceutical products and their preparation procedure. These products can be used for pulmonary scintigraphy or for therapy. They comprise a polysaccharide and sequestering groups of formulae R-NH-, R-N=, and formula (I) in which R is a hydrocarbonic or aromatic group comprising at least one atom of sulphur and R' is an atom of , hydrogen or an alkyl grouping such as methyl said sequestering groups forming , a chelate type complex with a radioactive metal such as technetium.
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 August 23, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 23, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 23, 2022.
- 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.