Canadian application, no grantCanada
Water-soluble or water-dispersible polyaspartic acid derivatives, their preparation and their use
CA 2210976 A1 · Owner: Nguyen Kim, Son · Inventors: Kroner, Matthias; Sanner, Axel; Nguyen Kim, Son
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A description is given of water-soluble or water-dispersible polyaspartic acid derivatives, their preparation and their use in cosmetology, especially in hair cosmetology.
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 July 31, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 31, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 31, 2019.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 31, 1997
GrantedNo grant recorded
Term endedJuly 31, 2017
Patent numberCA 2210976 A1
Classification (IPC)C08G69/48 +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.