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Expired Canadian patentCanada

Method and system for capturing a note-taking session

CA 2400817 C · Owner: Silverbrook, Kia · Inventors: Silverbrook, Kia; Lapstun, Paul

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

A method of capturing data relating to a note-taking session consisting of handwritten annotations made by use of a writing implement on a plurality of pages. A computer system receives via the writing implement an indication of the start of the note-taking session, data indicative of handwritten annotations made by the user on a plurality of pages and an indication of the , end of the note-taking session. The computer system then retains a retrievable record of the received data for the note-taking session.

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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 November 27, 2000 and granted September 18, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 27, 2020.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 27, 2022.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 27, 2000
GrantedSeptember 18, 2012
Term endedNovember 27, 2020
Patent numberCA 2400817 C
Classification (IPC)G06F3/03 +2 more

Timeline

Timeline From CIPO dates

2001200320052007200920112013201520172019Application filedNov 27, 2000Patent grantedSep 18, 2012Term endedNov 27, 2020

Sources & verification

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