Low amylopectin starch
CA 2104851 C · Owner: Capitani, Teresa · Inventors: Fannon, John E.; Jeffcoat, Roger; Fergason, Virgil
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention provides a starch derived from a single plant source comprising less than 10%, optionally less than 5% amylopectin. The starch, additionally comprises at least 75% amylose optionally at least 85% amylose, measured by butanol fractionation/exclusion chromatography measurement. In another aspect of this invention, the starch is extracted in substantially pure form from a starch bearing plant havinq a recessive amylose extender genotype that is associated with amylose extender modifying genes. The starch bearing plant from which the starch is extracted is preferably a maize plant.
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 25, 1993 and granted May 4, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 25, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 25, 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.
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.