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Expired Canadian patentCanada

Electronic device having keyboard for thumb typing

CA 2409915 C · Owner: Griffin, Jason T. · Inventors: Griffin, Jason T.; Ladouceur, Norman M.

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

An electronic device that includes an electronic display screen having a first display area for displaying a first set of a plurality of selectable symbols and a second display area for displaying a second set of a plurality of selectable symbols a first user input device for selecting symbols from the first set the first user input device generating a first selection signal in response to force applied thereto and a second user input device for selecting symbols from the second set the second user input device generating a second selection signal in response to force applied thereto. A processor is connected to the display screen and the first and second input devices for causing one of …

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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 October 29, 2002 and granted January 3, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 29, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 29, 2024.
  • 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 29, 2002
GrantedJanuary 3, 2012
Term endedOctober 29, 2022
Patent numberCA 2409915 C
Classification (IPC)G06F3/02 +2 more

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedOct 29, 2002Patent grantedJan 3, 2012Term endedOct 29, 2022

Sources & verification

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