8-chloro-6,11-dihydro-11-(4-piperidylidene)-5h-benzo5,6cyclohepta1,2-bpyridine oral compositions
CA 2325014 C · Owner: Merck Sharp & Dohme Corp. · Inventors: Kou, Jim H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Stable pharmaceutical compositions containing 8-chloro- 6,11-dihydro- 11-(4piperidylidene)- 5H-benzo5,6 cycloheptic 1,2-b pyridine ("DCL") and a DCL protective amount of a pharmaceutically acceptable basic salt such as calcium dibasic phosphate and an amount of at least one disintegrant preferably two , disintegrates such as microcrystalline cellulose and starch sufficient to provide dissolution of at least about 80 % by weight of the pharmaceutical composition in about 45 minutes and suitable for oral administration to treat allergic reactions in mammals such as man are disclosed.
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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
- Filed July 8, 1999 and granted May 28, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 8, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 8, 2021.
- 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.