Agglomerates by crystallisation
CA 2364342 C · Owner: Lefferts, Ageeth Geertruida · Inventors: Lefferts, Ageeth Geertruida; Booij, Johannes
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention describes novel agglomerates in crystalline form of .beta.-lactam compounds. Furthermore, a process for the preparation of said agglomerates, wherein a solution or suspension of at least one .beta.-lactam compound in a solvent is mixed with one or more anti-solvents has been described.
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 April 3, 2000 and granted February 1, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 3, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 3, 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.