Nova Patents
ZA97795B

Method and apparatus for providing a private communication system in a public switched telephone network.

Abstract

This record has no abstract on file.

Term

Term ended

Expired 30 January 2017, 9.6 years ago.

  1. Priority
  2. Filed
  3. Granted
  4. Expired
  5. Today

47 members in 22 offices

This recordMember, by publication datePriority claim12 more offices are in the list below

Priority claims1

Priority claims
DocumentOfficeKindDate
59556696United States of AmericaA

Members47

Family members, oldest first
DocumentOfficeKind
ZA97795BThis recordSouth AfricaB
CA2244929A1CanadaA1
CA2475870A1CanadaA1
CA2481367A1CanadaA1
CA2481368A1CanadaA1
WO9728658A2World Intellectual Property Organization (WIPO)A2
ID15870AIndonesiaA
AU1848797AAustraliaA
WO9728658A3World Intellectual Property Organization (WIPO)A3
FI981689A0FinlandA0
NO983546D0NorwayD0
FI981689AFinlandA
FI981689A7FinlandA7
NO983546LNorwayL
EP0878103A2European Patent Office (EPO)A2
IL125610A0IsraelA0
IL125610D0IsraelD0
BR9707264ABrazilA
CN1214842AChinaA
US5912882AUnited States of AmericaA
AR005690A1ArgentinaA1
HK1017205AHong Kong, ChinaA
HK1017205A1Hong Kong, ChinaA1
KR19990082218ARepublic of KoreaA
AU716936B2AustraliaB2
JP2000504182AJapanA
TW393848BTaiwan Province of ChinaB
RU2178957C2Russian FederationC2
NO316967B1NorwayB1
KR100443781B1Republic of KoreaB1
CA2244929CCanadaC
EP0878103B1European Patent Office (EPO)B1
AT320696TAustriaT
ATE320696T1AustriaT1
MY122360AMalaysiaA
DE69735478D1GermanyD1
DE69735478T2GermanyT2
ES2264156T3SpainT3
JP2008099328AJapanA
FI119796BFinlandB
CA2481367CCanadaC
JP4445005B2JapanB2
BR9707264B1BrazilB1
BRPI9707264B1BrazilB1
CA2475870CCanadaC
CA2481368CCanadaC
USRE44577EUnited States of AmericaE