Controlled release therapeutic system for liquid pharmaceutical formulations
CA 1338569 C · Owner: Santus, Giancarlo · Inventors: Golzi, Roberto; Santus, Giancarlo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A controlled release pharmaceutical dosage formulation comprising microgranules of an active substance, such as theophylline ketorolac-trometamine and naproxene, having dimensions such as to be easily kept in suspension in a liquid medium; and a plurality of layers coating such microgranules for controlling the release of the active substance contained in the microgranules at a predetermined time and at the same time maintaining, the release characteristics stable for long periods of time. The coated microgranules can be provided in a ready-to-use liquid suspension or as a solid mixture which can be suspended in a liquid vehicle at the moment of usage. The liquid vehicle may contain an …
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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 September 3, 1996. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 3, 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.