Expired Canadian patentCanada
New additives for preventing caking of powdered emulsifiers
CA 2441978 C · Owner: Heroufosse, Francois · Inventors: Heroufosse, Francois; Vanzeveren, Emmanuel
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 present invention is related to a powdered composition comprising an emulsifier and at least one anti-caking additive selected from the group , consisting of earth alkali oxides earth alkali hydroxides or a mixture , thereof.
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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 March 15, 2002 and granted September 24, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 15, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 15, 2024.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 15, 2002
GrantedSeptember 24, 2013
Term endedMarch 15, 2022
Patent numberCA 2441978 C
Classification (IPC)B01J2/30
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.