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Expired Canadian patentCanada

Non-contact led-array image printer

CA 1316738 C · Owner: Itek Graphix Corp. · Inventors: Dodge, Dennis W.

CIPO record

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A non-contact LED-array image printer is provided having a scanning print head driven by a zero backlash threaded lead screw. The LED array is mounted on a substrate bearing an interface control circuit which receives video data through a ribbon cable, and the LED array is imaged by a lens onto an exposure plane on a platen parallel to the direction of scan. Means are provided for conveniently adjusting object ant image distances relative to the image plane. The photosensitive medium is driven in registration in forward and reverse directions biased against the exposure platen define the image plane. A gear, clutch and brake mechanism is provided to ensure that the photosensitive medium …

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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 27, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 27, 2010.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 20, 1988
GrantedApril 27, 1993
Term endedApril 27, 2010
Patent numberCA 1316738 C
Classification (IPC)G01D9/42 +1 more

Timeline

Timeline From CIPO dates

19891992199519982001200420072010Application filedOct 20, 1988Patent grantedApril 27, 1993Term endedApril 27, 2010

Sources & verification

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