Tamper-evident overcap
CA 2263222 C · Owner: Creative Packaging Corporation · Inventors: Beck, James M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A tamper-evident cap and overcap including a cap (12) with an upstanding cap portion and a lower base (22), the base defining a circumferential channel (20). An overcap (14) is positioned to enclose the upstanding cap portion with the overcap carrying a circumferential projection of skirt (18) permanently retained in the circumfererential channel typically by force-fit. , A frangible line of weakness (16) permits separation of the overcap and the circumferential projection. At least the circumferential projection and , typically also the overcap, are of a color that contrasts with the color of the cap, so that, upon removal of the cap the remaining edge (26) of the , circumferential …
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 September 10, 1997 and granted May 8, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 10, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 10, 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.