Closure for a container, consisting of a closure underpart and a screw cap
CA 2187294 C · Owner: Stolz, Bernd · Inventors: Stolz, Bernd
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention pertains to a closure for a container consisting of a closure underpart (10) and a screw cap (20) where the, closure underpart (10) connects to the container opening by means of a base part (11), and has a pour spout (15) that is joined to the base part (11). The screw cap (20) with cap base and inside-threaded cap casing (21) screws off and onto the outside-threaded pour spout (15). The cap casing (21) of the screw cap (20) is extended at the open end with at least one locking tab (22). The locking tabs (22) of the screw cap (20) cooperate with catches (23) on the closure part to form an interlocking connection, the catches having in the screw-on direction a flat sloping …
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 April 7, 1995 and granted August 26, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 7, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 7, 2017.
- 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.