Bottle assembly with improved seal
CA 2069585 C · Owner: Painchaud, Michel · Inventors: Lapointe, Jean-Paul; Richard, Jean P.; Painchaud, Michel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A bottle assembly for storing and retailing a liquid substance such as fabric bleach that generates gases when it is heated or contaminated. The bottle of the assembly has a neck on which a closure cap may be screwed. The neck is closed by a peelable seal made of porous plastic foam such as polystyrene, which is fixed by a pressure adhesive across the neck and sized so as to be easily graspable and peelable with two fingers with a reduced risk of contact with the substance within the bottle. Another seal made of the same porous foam is freely mounted within the cap to allow the bottle to be sealed again in a permanent manner after the peelable seal has been removed. Both seals pevents 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 May 26, 1992 and granted March 4, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 26, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 26, 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.