Pin-shaped device for releasing a flowable medium
CA 1279609 C · Owner: A.W. Faber-Castell Gmbh & Co. · Inventors: Katz, Otto
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A pin-shaped device for releasing a flowable medium comprises a housing having front and rear ends and an axis a, brush-like application element arranged to extend through the front end of the housing and displaceable in a an axial direction a piston rod arranged to displace the application element the, housing having an intermediate wall provided with a guiding opening, the piston rod being axially movable in the guiding opening, a pressure spring acting upon the piston rod so that the piston rod is movable in the guiding opening under the action of the pressure spring, a dosing piston being in communication with the application element, a control piston the control piston and, 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
- Granted January 29, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 29, 2008.
- 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.