Discharge device for manually producing a volume flow
CA 2456478 C · Owner: Ing. Erich Pfeiffer Gmbh · Inventors: Greiner-Perth, Juergen
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A discharge device for manually producing a volume flow by a discharge stroke having a medium reservoir for at least one medium a discharge opening, a pumping device and a working area associated with the pumping device and which in the inoperative position has a detachable positive connection to a holding area by means of a locking device is known. According to the invention the locking device in at least one plane orthogonal to a discharge stroke direction has an at least zonally or circumferentially corrugated and/or polygonal cross-section. Use for discharging a medium.
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 3, 2004 and granted October 23, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 3, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 3, 2026.
- 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.