Three-way valve and liquid distribution pipe comprising same, both adapted to be cleaned by scraping
CA 2000882 C · Owner: Fmc Europe S.A. · Inventors: Le Devehat, Eugene
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A three-way valve for a liquid distribution pipe both, adapted to be cleaned by scraping comprises a main section (2) designed to be connected to the distribution pipe and branch section (5) designed to be connected to an inlet/outlet pipe and communicating with the main section through an opening (9) provided in the wall of the main section and entirely contained within the extension of the internal volume of the branch section (5). A mobile obturator (10) adapted to close off selectively the opening is situated between the branch section (5) and the opening; it comprises a spherical plug (11) through which passes a cylindrical bore (14) and which is adapted to rotate at least 90° about an …
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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 October 17, 1989 and granted August 4, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 17, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 17, 2011.
- 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.