Encapsulated products
CA 2034639 C · Owner: Morehouse, Alpha L. · Inventors: Morehouse, Alpha L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Improved encapsulated products comprising a matrix of a starch hydrolyzate acid ester having a water-insoluble material encapsulated therein. In preferred embodiments a, reducing sugar is employed in the encapsulating process and the starch hydrolyzate ester is refined and an acid in combination with an acid salt is used in forming the starch hydrolyzate acid ester.
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 January 21, 1991 and granted May 14, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 21, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 21, 2013.
- 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.