Expired Canadian patentCanada
Improvement of specificity in the determination of antithrombin
CA 2437642 C · Owner: F. Hoffmann-La Roche Ag · Inventors: Adema, Enno
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns a method for determining antithrombin III (AT) in body fluids by adding an AT binding partner to the sample and determining the free AT binding partner and it also concerns a reagent that is suitable for this method.
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 20, 2003 and granted April 30, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 20, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 20, 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.
FiledAugust 20, 2003
GrantedApril 30, 2013
Term endedAugust 20, 2023
Patent numberCA 2437642 C
Classification (IPC)G01N33/53 +1 more
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.