Breast pump
CA 2010891 C · Owner: Schlensog, Klaus · Inventors: Schlensog, Klaus; Riedweg, Robert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The breast pump comprises a milk reservoir and a flanged closure member for connection with the reservoir; the closure member comprises a suction bell and a suction pump suitable for single-handed manual operation and includes (a) a cylinder integrally connected with the closure member; (b) a piston means for reciprocating motion within the cylinder between a first or lower position and a second or upper position and (c) a, spring-loaded actuator for interaction with the piston means. According to the invention the actuator is a yoke structure, formed of an elongated flat spring member that tends to revert into a first or rest position and is reversibly deformable into a second or …
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 February 26, 1990 and granted January 26, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 26, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 26, 2012.
- 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.