Antithrombotic compound
CA 2393042 C · Owner: N.V. Organon · Inventors: Tromp, Cornelia Maria; Van Boeckel, Constant Adriaan Anton; Geertsen, Tamara Theodora Maria
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 compounds of the formula (I) wherein R is , independently SO3- or CH3; the spacer is a flexible spacer of a length of 13- 25 atoms; the charge of the pentasaccharide residue is compensated by positively charged counterions; and the total number of sulfate groups in the pentasaccharide residue is 4, 5 or 6; or a pharmaceutically acceptable salt a , prodrug or a solvate thereof. The compounds of the invention have antithrombotic activity and can be used in treating or preventing thrombinrelated diseases.
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 December 1, 2000 and granted June 28, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 1, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 1, 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.