Polysaccharide-containing compositions and use thereof
CA 2456833 A1 · Owner: Ue, Masaki · Inventors: Yoshikawa, Masahito; Kuwano, Mitsuaki; Ue, Masaki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
It is intended to prepare compositions which contain polysaccharides at a high concentration and yet remain in the state of a liquid having a low viscosity to thereby provide drugs, eyedrops, foods cosmetics, toiletry products, etc. , having a novel texture and/or function. A composition in the state of a liquid having a low viscosity can be obtained by heating polysaccharides (for example, agar) at a high concentration in a water-containing liquid and then cooling under applying a shear force. Thus the above-described drugs can be , provided. Compositions usable as aqueous drug bases which never undergo , gelation due to temperature changes during storage and can be easily applied …
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 12, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 12, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 12, 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.
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.