Canadian application, no grantCanada
Process for the separation of amino acids from aqueous solutions
CA 2096767 A1 · Owner: Yonsel, Sems · Inventors: Schaefer-Treffenfeldt, Wiltrud; Kinz, Heike; Yonsel, Sems
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 process for the separation o amino acids from aqueous solutions by adsorption on zeolites of different types. During the workup of fermentation broth it is unnecessary to separate the biomass.
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 May 21, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 21, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 21, 2015.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 21, 1993
GrantedNo grant recorded
Term endedMay 21, 2013
Patent numberCA 2096767 A1
Classification (IPC)C12P13/04 +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.