Particle containing a liquid-soluble active substance for release outside a human or animal body
CA 1294834 C · Owner: Aktiebolaget Hassle · Inventors: Berglund, Bengt Goran
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
23940-544, Abstract, A particle containing a liquid-soluble active substance for release outside a human or animal body, said particle comprising a core with a coating thereon, said coating comprising a liquid soluble active substance, is characterized in that the core has an appearance differing from the appearance of the coating, and that the appearance of the core is initially concealed by the coating and appears after dissolution of the liquid-soluble active substance, thus indicating that the active substance in said coating has been dissolved. The invention has its foremost application on granules, tablets and similar drug releasing units which make part of a parenteral liquid …
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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 January 28, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 28, 2009.
- 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.