Patent Yard Sign in
Expired Canadian patentCanada

System for mobile radio communication with at least one subscriber area located in an overall area

CA 2521782 C · Owner: O2(Germany) Gmbh & Co. Ohg · Inventors: Schweiger, Tobias; Macarro, Agustin; Waite, Gary

CIPO record

Overview

Drawings and full text

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

Open the CIPO record

Abstract From the Canadian patent

The present invention relates to a communications system for mobile radio telephony comprising mobile devices, comprising modules which can be inserted into the mobile devices, with at least one subscriber territory being fixed inside the , total territory covered by the communications system within which subscriber , territory communication takes place from and/or to the mobile devices under special , conditions, and comprising means by which it can be determined whether the mobile device is located inside the subscriber territory. In accordance with the , invention, the means are arranged on the module or in a determination unit which , can be accessed by means of remote polling. …

Read the whole patent

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 April 8, 2004 and granted September 24, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 8, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 8, 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.
FiledApril 8, 2004
GrantedSeptember 24, 2013
Term endedApril 8, 2024
Patent numberCA 2521782 C
Classification (IPC)H04W8/18 +2 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedApril 8, 2004Patent grantedSep 24, 2013Term endedApril 8, 2024

Sources & verification

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