Filtering system
CA 1281296 C · Owner: Thomsen, Jack W. · Inventors: Tadlock, John W.; Thomsen, Jack W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A filtering system for water treatment including a head member having fluid inlet and outlet ports a bracket, member adapted to be secured to stationary support means the head member being secured to the bracket member a, disposable filter cartridge closed at one end and being equipped at its other end with a closure member the closure, member having inlet and outlet passages formed therein to communicate with the interior of said filter cartridge the, closure member portion of the filter cartridge being insertable into the head member, its inlet and outlet passages formed so as to communicate with the inlet and outlet ports in the head member, and coacting locking means formed on the head …
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 March 12, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 12, 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.