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Expired Canadian patentCanada

A method for communicating state information between a server and a mobile device browser with version handling

CA 2615722 C · Owner: Kalougina, Tatiana · Inventors: Knowles, Michael; Tapuska, David; Kalougina, Tatiana

CIPO record

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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 for communicating state information between a server and a mobile device browser with version handling includes: providing a control channel between the server and mobile device browser; transmitting at least one message from the mobile device browser to the server over the control channel indicative of browsing-related state data wherein the at least one message , includes an XML-encoded document and a protocol version value identifying a version of Document Type Definition (DTD) against which to validate the XMLencoded document; and regulating subsequent transmission of data from the server to the mobile device browser based on the at least one message.

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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 21, 2006 and granted September 25, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 21, 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.
FiledJuly 21, 2006
GrantedSeptember 25, 2012
Term endedJuly 21, 2026
Patent numberCA 2615722 C
Classification (IPC)H04W12/10 +2 more

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedJuly 21, 2006Patent grantedSep 25, 2012Term endedJuly 21, 2026

Sources & verification

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