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Expired Canadian patentCanada

Ink jet printer

CA 1203427 A · Owner: The Mead Corporation · Inventors: Black, Gerda N.; Kockler, Barry C.; Geiselman, Theodore S.

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

An ink jet printer includes a catcher having a catcher plate along the lower portion thereof which is pivotally mounted for rotation about an axis parallel to a row of jet drop streams produced by the ink jet printer print head. A charge electrode plate, defining a plurality of notched charge electrodes, is movable between a drop charging position and a remote position. At start up and shut down of the printer, the charge electrode plate is maintained in its drop charging position when a deflection field is produced by a deflection electrode, so as to shield the drops from the deflection field. The catcher is pivoted into a full catch position at start up and shut down so as to catch …

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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 22, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 22, 2003.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 27, 1983
GrantedApril 22, 1986
Term endedApril 22, 2003
Patent numberCA 1203427 A
Classification (IPC)G01D15/18 +1 more

Timeline

Timeline From CIPO dates

1984198619881990199219941996199820002002Application filedJan 27, 1983Patent grantedApril 22, 1986Term endedApril 22, 2003

Sources & verification

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