Pump for dispensing flowable media
CA 2270936 C · Owner: Rosenthal, Karl-Heinz · Inventors: Rosenthal, Karl-Heinz
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
On order to simplify the design of a pump intended for use with flowable elements, especially a cosmetic pump provided with a base plate (1) which can be secured to a container (2) and presents once mounted, a lower side (6) , turned to the container and an upper side (7) turned in the opposite direction, with an inlet (14) for letting through the element stored in the container (2) and, around the inlet on the upper surface a sleeve for , receiving a pumping device with a cover-fitted piston (21) which is pushed by , at least one compression spring against the base plate (1) while said piston , cover has a lower side (21a) turned to the container (2) an upper side (21b) , turned in 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 October 27, 1997 and granted March 18, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 27, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 27, 2019.
- 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.