Stabilized natural pigment complexes
CA 1270353 C · Owner: Societe Des Produits Nestle S.A. · Inventors: Muffett, Dorothy J.; Hettiarachchy, Navagnana S.; Wedral, Elaine R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Stabilized Natural Pigment Complexes Processes for the preparation of natural pigment complexes which have improved stability against oxygen heat, light, and moisture and which are soluble in aqueous media at acidic pH conditions are disclosed. The pigment complexes produced by these processes are also disclosed.
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
- Granted June 19, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 19, 2007.
- 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.