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Expired Canadian patentCanada

Method and system for producing a table image having focus and context areas showing direct and indirect data representations

CA 2128578 C · Owner: Xerox Corporation · Inventors: Rao, Ramana B.; Card, Stuart 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

A method is disclosed for operating a processor-controlled system to produce from a first table image upon receipt of an image display request signal from a signal source a second table image including focal and context cell regions having output region sizes different from the regions sizes of the corresponding cells in the first table image. The output region size of each focal cell region is determined according to a "degree of interest" (DOI) function for each dimension of the table image that represents the level of interest of each cell region in that dimension. A predetermined cell size is allocated to focal cell regions and the remaining available output space is allocated to the …

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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 July 21, 1994 and granted October 5, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 21, 2014.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 21, 2016.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 21, 1994
GrantedOctober 5, 1999
Term endedJuly 21, 2014
Patent numberCA 2128578 C
Classification (IPC)G06F3/14 +2 more

Timeline

Timeline From CIPO dates

1995199719992001200320052007200920112013Application filedJuly 21, 1994Patent grantedOct 5, 1999Term endedJuly 21, 2014

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