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Expired Canadian patentCanada

Apparatus for gas treatment of articles traversing an enclosure

CA 1069296 A · Owner: Saint-Gobain Industries · Inventors: Ricci, Aldo; Passerini, Nedo

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

Treatment of articles in an enclosure traversed by gases, according to which the articles are advanced translationally and are simultaneously rotated characterized, by apparatus for causing the articles to travel the length of the enclosure several times and at different levels and for, causing the articles to roll on flat superimposed surfaces extending across the enclosure by bringing them in contact with driving components carried in a continuous or endless circuit so that the same components provide for successive travel of the articles first in one direction, and then in the other direction at two different levels.

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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 January 8, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 8, 1997.
  • 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—
GrantedJanuary 8, 1980
Term endedJanuary 8, 1997
Patent numberCA 1069296 A
Classification (IPC)F26B15/18 +2 more

Timeline

Timeline From CIPO dates

198119831985198719891991199319951997Patent grantedJan 8, 1980Term endedJan 8, 1997

Sources & verification

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