Child resistant closure with protective flange and canted upper wall
CA 2127290 C · Owner: La Vange, Donald H. · Inventors: La Vange, Donald H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A child resistant dispensing closure (10) having a cap (12) and a spout (14) mounted thereon for rotation about a substantially horizontal axis. The upper surface of the spout is provided with a plurality of ribs (48 50), each of which has a distinct energy plane. Only one rib, usually, the rearmost (50) allows sufficient purchase to produce the force vector necessary to initiate rotation of the spout when a manual force is applied thereto. The cap includes a cylindrical skirt (18) with a frusto-conical section (16) extending upwardly therefrom. A protective flange (66) extends upwardly about the perimeter of the upper end of the frustoconical section to deter unauthorized access to the …
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 December 29, 1992 and granted May 4, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 29, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 29, 2014.
- 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.