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Expired Canadian patentCanada

Adsorber for purifying combustion gases

CA 2203699 C · Owner: Steag Encotec Gmbh · Inventors: Bruggendick, Hermann

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

The adsorber contains an adsorption agent chamber (4) with an upper filler stub (5). On the inflow side the chamber has a slatted wall (7) and on the outflow side a separating sieve (8). The slatted wall is taken up to the height of the filler stub while the separating sieve is connected to the filler stub (5) by an oblique, gas-impermeable wall (10). The operative region of the chamber (4) is thus gas-permeable on the inflow side while the oblique , wall (10) induces an obliquely downward gas flow in this region. Optimum flow characteristics are obtained in the operative region without any additional fitments. On the filler stub (5) there is a filling container (15) and the filler …

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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 11, 1995 and granted December 19, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 11, 2015.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 11, 2017.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 11, 1995
GrantedDecember 19, 2000
Term endedOctober 11, 2015
Patent numberCA 2203699 C
Classification (IPC)B01D53/08

Timeline

Timeline From CIPO dates

1996199820002002200420062008201020122014Application filedOct 11, 1995Patent grantedDec 19, 2000Term endedOct 11, 2015

Sources & verification

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