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Expired Canadian patentCanada

Method and system for rfid communication

CA 2556783 C · Owner: Park, Eric · Inventors: Park, Eric

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 and system for RFID communication is provided. The system includes a first RFID reader and an RFID read-write tag uniquely assigned to the first RFID reader. The RFID read-write tag receives information from RFID readers other than the first RFID reader and provides the information to the first RFID reader.

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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 August 23, 2006 and granted January 3, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 23, 2026.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 23, 2006
GrantedJanuary 3, 2012
Term endedAugust 23, 2026
Patent numberCA 2556783 C
Classification (IPC)G01V3/12

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedAug 23, 2006Patent grantedJan 3, 2012Term endedAug 23, 2026

Sources & verification

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