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Expired Canadian patentCanada

Treating matter

CA 1303334 C · Owner: Mortimer Technology Holdings Limited · Inventors: Dodson, Christopher Edward

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

Fig. 2), TREATING MATTER, Matter to be treated is passed through at least two treating regions 12, 14 sequentially. In each region a bed 29, 31 of the matter is moved in a band continuously along an annular path by passing fluid through the bed along the path. The annular paths of the regions 12, 14 are concentric.

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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 June 16, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 16, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 27, 1988
GrantedJune 16, 1992
Term endedJune 16, 2009
Patent numberCA 1303334 C
Classification (IPC)B01J8/08 +2 more

Timeline

Timeline From CIPO dates

1989199219951998200120042007Application filedMay 27, 1988Patent grantedJune 16, 1992Term endedJune 16, 2009

Sources & verification

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