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Expired Canadian patentCanada

Color balanced image detector system

CA 2009286 C · Owner: Polaroid Corporation · Inventors: Smyth, William K.

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

An imaging system for producing multicolor images of a scanned subject includes a plurality of detector assemblies. Each of the detector assemblies is sensitive to a specific color. Typically red, green, and blue detector assemblies are employed for converting images in the primary colors to the desired output image. Each detector assembly includes multiple rows of CCD detector elements positioned in registration with each other for a two-dimensional array of the detectors. Pixels of the subject are viewed repetitively by the successive detectors of the column to provide for an integrated detector signal. The number of detector elements in each column is varied in accordance with the color …

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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 February 5, 1990 and granted December 14, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 5, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 5, 2012.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 5, 1990
GrantedDecember 14, 1999
Term endedFebruary 5, 2010
Patent numberCA 2009286 C
Classification (IPC)G03B27/50 +2 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedFeb 5, 1990Patent grantedDec 14, 1999Term endedFeb 5, 2010

Sources & verification

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