Pump device with collapsible pump chamber having integral shipping seal
CA 2319254 C · Owner: The Procter & Gamble Company · Inventors: Stigall, J. Randall; Peterson, Robert James; Stahley, Robert Edward
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A liquid dispensing pump for use with consumer product packages is provided with, a shipping seal. The housing of the pump device includes an upper housing and a lower, housing which are movable relative to each other between open and closed shipping seal, positions. The liquid dispensing pump includes a collapsible pump chamber; e.g. a, bellows. Integral with the bellows is at least one functional element of the shipping seal. The housing includes cooperating actuation elements which prevent actuation of the, pump device when the shipping seal is closed. The housing may also include a tamper, evident device which prevents actuation of the pump device prior to removal of the, tamper …
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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 18, 1994 and granted August 7, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 18, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 18, 2016.
- 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.