Hollow fibre filter cartridge and header
CA 1318862 C · Owner: U.S. Filter Wastewater Group, Inc. · Inventors: Kopp, Clinton Virgil; Roberts, Dennis; Biltoft, Bruce Gregory
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A fluid filter has a bundle of hollow fibres (40) within a casing. At one end of the casing (40) there is a header (41) which has a feed passageway (55) therethrough and in communication with the interior of the casing (40) and the exterior of the fibres. The header (41) also has a filtrate passageway (64) therethrough and in communication with the open ends of the fibres. At the other end of the casing there is a second header (42) which has a treated feed passageway (72) therethrough and in communication with the interior of the casing (40) and the exterior of the fibres. The header (42) also has a filtrate passageway (74) therethrough and in communication with the open ends of 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 June 8, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 8, 2010.
- 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.