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Expired Canadian patentCanada

Apparatus for preventing condensation in machines processing a web of material

CA 2174167 C · Owner: Rummler, Jeffrey R. · Inventors: Kiefaber, Drew E.; Rummler, Jeffrey R.

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 present invention concerns an apparatus for preventing condensation in machines for processing web-like material and in particular an apparatus forpreventing condensation on the safety guard of a printing press. The apparatus includes components of a processing unit and elements assigned to the, components to maintain the surface temperature of the components above the dew point of the surrounding air.

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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 April 15, 1996 and granted February 29, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 15, 2016.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 15, 2018.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 15, 1996
GrantedFebruary 29, 2000
Term endedApril 15, 2016
Patent numberCA 2174167 C
Classification (IPC)B41F23/04 +1 more

Timeline

Timeline From CIPO dates

1997199920012003200520072009201120132015Application filedApril 15, 1996Patent grantedFeb 29, 2000Term endedApril 15, 2016

Sources & verification

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