Container opening and protective cap
CA 2249734 A1 · Owner: Pfefferkorn, Georg · Inventors: Pfefferkorn, Georg; Bosl, Udo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a container opening (1) having on the outside (2) cams (5) protruding radially outwards which can be engaged with retaining elements, in particular recesses (21) of the tamper-indicating strip (22) of a protective cap (20). The cams (5) and the recesses (21) each have a lateral retaining surface (6, 25) and a lower retaining surface (7 26). If the tamper-, indicating strip (22) is engaged via its recess (21) with the cam (5) it , cannot move vertically or towards the periphery. To tighten the tamperindicating strip (22) during the screwing-on process expansion members (10, 11, 13) are also arranged above the cams (5) which expand the tamperindicating strip (22) …
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 March 3, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 3, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 3, 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.