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Expired Canadian patentCanada

Apparatus for the filtering and separation of flow media with at least one permeate outlet

CA 2241297 C · Owner: Rochem Ro-Wasserbehandlung Gmbh · Inventors: Heine, Wilhelm

CIPO record

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

An apparatus (10) for the filtering and separation of flow media enriched with foreign matter (raw media) (11) particularly of liquid media, according to the ultra-filtration principle by means of a membrane separation structure (12) is proposed, wherein the flow medium (11) is admitted to the membrane separation structure (12) and is separated into a retentate (13) enriched with foreign matter and a permeate (14) depleted of foreign matter and wherein at least the permeate (14) leaves the apparatus (10) by way of at least one outlet (15). The membrane separation structure (12) is formed by at least one membrane module (19) mounted between two support elements (17 18), which are disposed in …

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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 June 22, 1998 and granted August 20, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 22, 2018.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 22, 2020.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 22, 1998
GrantedAugust 20, 2002
Term endedJune 22, 2018
Patent numberCA 2241297 C
Classification (IPC)B01D61/18 +2 more

Timeline

Timeline From CIPO dates

1999200120032005200720092011201320152017Application filedJune 22, 1998Patent grantedAug 20, 2002Term endedJune 22, 2018

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.