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Expired Canadian patentCanada

Image file container

CA 2473071 C · Owner: Ternasky, Joseph D. · Inventors: Crow, William M.; Dunbar, Geoffrey T.; Ternasky, Joseph D.

CIPO record

Overview

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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 image container file has at least first and second multimedia streams (MSs). The first MS includes first image data representing an image. The second MS includes arbitrary data which can for example, correspond to: a different representation of the same image; annotations to the first image data; second image data that together with the first image data form a new image with greater dynamic range resolution, field of view or other attributes that can be derived from processing two or more independent images; or an executable file related to the first MS. The image container file can also include an extensible metadata to hold information describing one or more multimedia streams of 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 6, 2004 and granted September 3, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 6, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 6, 2026.
  • 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 6, 2004
GrantedSeptember 3, 2013
Term endedJuly 6, 2024
Patent numberCA 2473071 C
Classification (IPC)G06T1/00 +2 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedJuly 6, 2004Patent grantedSep 3, 2013Term endedJuly 6, 2024

Sources & verification

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