Collapsible tube with a distributor head without air return
CA 2461690 A1 · Owner: Mounier, Laure · Inventors: Mounier, Laure; Kerman, Eric; Schneider, Bernard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a collapsible tube head (100 200, 300, 400) comprising a neck (103, 203 303, 403) which is fitted with a port (180 280, 380, 480) and a shoulder (102, 202 302, 402). The aforementioned head is fitted with a valve (110 210, 310, 410) which is inserted in the neck of the collapsible tube said valve comprising a sealing means (112 212, 312, 412) which is connected to a ring support (115 215, 315, 415) having an opening (122, 222 322, 422). When the tube is not compressed the sealing means is positioned so as to seal the opening and when the tube is compressed, said means is maintained in the open position. The internal surface of the tube is provided with a bore (105 …
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 August 14, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 14, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 14, 2024.
- 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.