Patent Yard Sign in
Expired Canadian patentCanada

System and method of fault management in a mobile communications network having a proxy switch

CA 2429715 C · Owner: Sundar, Rangamani · Inventors: Vishwanathan, Kumar K.; Naqvi, Shamim A.; Aravamudan, Murali

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

A proxy switch, communication methods, and communication logic for use in a mobile network are described. A proxy switch is deployed between a base station subsystem and a mobile station center. A FSN and a BSN are provided for communication with the MSC, and another FSN/BSN pair are provided for communication with the BS. Logic detects whether a received message is a change over order message (COO) from one of the MSC and BS indicating a break , in a first signaling link between the proxy switch and the one of the MSC and BS, and logic generates and sends a COA message to the one of the MSC and BS containing the BSN maintained by the switch for communication with the one of the MSC …

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 November 21, 2001 and granted January 4, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 21, 2021.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 21, 2023.
  • 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 21, 2001
GrantedJanuary 4, 2011
Term endedNovember 21, 2021
Patent numberCA 2429715 C
Classification (IPC)H04W92/12 +1 more

Timeline

Timeline From CIPO dates

2002200420062008201020122014201620182020Application filedNov 21, 2001Patent grantedJan 4, 2011Term endedNov 21, 2021

Sources & verification

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