Solenoid valve with dirt trap
CA 2112281 C · Owner: Van Prooijen, Frank · Inventors: Van Prooijen, Frank; Munsterhuis, Wim
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A solenoid valve in which an actuator is located above a valve seat and closure member. A valve stem which carries the closure member has a particle diverting collar thereon located above a valve stem guide in the valve housing. The valve housing has an annular upwardly opening well therein encircling the valve stem below the collar, the well functioning as a particle collector.
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 December 23, 1993 and granted July 29, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 23, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 23, 2015.
- 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.