Canadian application, no grantCanada
Separation of substance mixtures using polysaccharides
CA 2319386 A1 · Owner: Schneller, Arnold · Inventors: Bohm, Gitte; Andert, Doris; Schneller, Arnold
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 relates to a method for separating substance mixtures by chromatography using spherical microparticles consisting of chemically and physically unmodified, water-insoluble linear polysaccharides.
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 January 26, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 26, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 26, 2021.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 26, 1999
GrantedNo grant recorded
Term endedJanuary 26, 2019
Patent numberCA 2319386 A1
Classification (IPC)B01D15/08 +2 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.