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Expired Canadian patentCanada

Packing material

CA 1052686 A · Owner: Ciba-Geigy Ag · Inventors: Fattinger, Volker

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

Packing Material, Abstract of the Disclosure A new packing material for liquid/gas contact reaction apparatus in particular for gas purifying systems,is provided. The packing material consists of a plurality of parallel rods which are so arranged on a basket-shaped carrier and so dimensioned that it has an approximately spherical or spheroid form. The carrier consists preferably of parallel rings of staggered diameters. The packing material according to the invention has an extraordinarily high degree of efficiency and is very easy and relatively cheap to manufacture.

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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

  • Granted April 17, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 17, 1996.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedApril 17, 1979
Term endedApril 17, 1996
Patent numberCA 1052686 A
Classification (IPC)B01F3/04 +2 more

Timeline

Timeline From CIPO dates

198019821984198619881990199219941996Patent grantedApril 17, 1979Term endedApril 17, 1996

Sources & verification

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