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Expired Canadian patentCanada

Dispersible cimetidine tablets

CA 1333156 C · Owner: Trost, Zvezdana · Inventors: Kopitar, Zdravko; Stalc, Anton; Trost, Zvezdana

CIPO record

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Abstract From the Canadian patent

There are described novel dispersible cimetidine tablets containing 30 to 90 % by weight of one of the polymorphous modifications of cimetidine A B or C, 5 to 55 % by, weight of one or more disintegrationg agents 0.05 to 5.0 % by weight of a surfactant such as sodium lauryl sulphate together with other common adjuvants. The process for the manufacture of dispersible cimetidine tablets is effected on the basis of known methods by granulating the ingredients and by compressing the granulate to tablets. Dispersible tablets disintegrate when brought in contact with water at room temperature within less than 1 minute to yield a fine dispersion which facilitates the oral ap-, plication. Therefore …

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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 November 22, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 22, 2011.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 16, 1989
GrantedNovember 22, 1994
Term endedNovember 22, 2011
Patent numberCA 1333156 C
Classification (IPC)A61K31/41 +2 more

Timeline

Timeline From CIPO dates

19901993199619992002200520082011Application filedJune 16, 1989Patent grantedNov 22, 1994Term endedNov 22, 2011

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.