Plastic screw cap with pilferproof ring
CA 2297826 A1 · Owner: Sacmi Cooperativa Meccanici Imola S.C.R.L. · Inventors: Parrinello, Fiorenzo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A plastic screw cap (1) comprising a cylindrical cup (2) provided with an internal thread and with a pilferproof ring which is connected to the rim of the cup by means of a plurality of bridges (9) which form a circular fracture line, the ring having a plurality of internal flaps (12) which are inclined towards the bottom of the cup; the pilferproof ring comprising a cylindrical wall (8), whose thickness is such that it is substantially flexible in a radial expansion direction, a rim which is connected to the rim of the cup by the bridges, and an opposite rim which is connected to an internal annular bead (11) whose inside diameter is smaller than the inside diameter of the wall …
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 July 21, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 21, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 21, 2020.
- 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.