Product
CA 2272702 A1 · Owner: Smithkline Beecham P.L.C. · Inventors: Flewitt, Harry
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A pharmaceutical tablet having a break line aligned across a long dimension of the tablet such that a twisting action in which parts of the tablets on , opposite sides of the break line are subjected to rotational twisting force in respectively opposite senses, causes the tablet to break along a line substantially following the break line into two or more parts. Preferably the shape comprises two lobes on either longitudinally disposed side of the longitudinal mid-point of the tablet, with a waist in between which is narrower in width than the widest part of each lobe. The tablet is preferably broken by the user using a twisting action.
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 November 24, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 24, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 24, 2019.
- 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.