Universal on/off solenoid valve assembly
CA 2199861 C · Owner: Lectron Products · Inventors: Gluf, Carl G. Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to an ON/OFF solenoid valve assembly which utilizes a large group of universal components for assembly of either a normally-open solenoid valve or a normally-closed solenoid valve with a minimum, number of non-interchangeable components required for adapting from a normally-closed solenoid valve to a normally-open solenoid valve and vice-versa.
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 March 12, 1997 and granted October 23, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 12, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 12, 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.