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Expired Canadian patentCanada

Method and system for accessing visually obscured data in a data processing system

CA 2095446 C · Owner: Rozmiarek, Edward Scott · Inventors: Tench, James G. Jr.; Krueger, Leroy A.; Rozmiarek, Edward Scott

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Abstract From the Canadian patent

A method and system for accessing visually obscured data in a data processing system having a computer application displayed concurrently with a video image in a window which partially overlaps the computer application. The location of the video image within the window is maintained in relation to the visually obscured data within the computer application. The video image, which is comprised of a plurality of lines of video data, is then temporarily altered to a translucent state by omitting selected lines of video data. This renders the video image partially visible allowing the visually obscured data within the computer application to be seen through the video image. The visually obscured …

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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 May 4, 1993 and granted June 23, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 4, 2013.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 4, 2015.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 4, 1993
GrantedJune 23, 1998
Term endedMay 4, 2013
Patent numberCA 2095446 C
Classification (IPC)G06F3/14 +2 more

Timeline

Timeline From CIPO dates

1994199619982000200220042006200820102012Application filedMay 4, 1993Patent grantedJune 23, 1998Term endedMay 4, 2013

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