GB2201564B - Telephone exchange systems - Google Patents

Telephone exchange systems

Info

Publication number: GB2201564B
Authority: GB; United Kingdom
Prior art keywords: telephone exchange; exchange systems; systems; telephone; exchange
Prior art date: 1987-02-21
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Expired - Fee Related

Application number

GB8704080A

Other versions

GB2201564A (en

GB8704080D0 (en

Inventor

Geoffrey Harland

Alan James Penn

Frederick Henry Rees

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

STC PLC

Original Assignee

STC PLC

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1987-02-21

Filing date

1987-02-21

Publication date

1991-05-15

1987-02-21 Application filed by STC PLC filed Critical STC PLC

1987-02-21 Priority to GB8704080A priority Critical patent/GB2201564B/en

1987-03-25 Publication of GB8704080D0 publication Critical patent/GB8704080D0/en

1988-09-01 Publication of GB2201564A publication Critical patent/GB2201564A/en

1991-05-15 Application granted granted Critical

1991-05-15 Publication of GB2201564B publication Critical patent/GB2201564B/en

2007-02-21 Anticipated expiration legal-status Critical

Status Expired - Fee Related legal-status Critical Current

Links

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing

Landscapes

Engineering & Computer Science (AREA)
Computer Networks & Wireless Communication (AREA)
Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)

GB8704080A 1987-02-21 1987-02-21 Telephone exchange systems Expired - Fee Related GB2201564B (en)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
GB8704080A GB2201564B (en)	1987-02-21	1987-02-21	Telephone exchange systems

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
GB8704080A GB2201564B (en)	1987-02-21	1987-02-21	Telephone exchange systems

Publications (3)

Publication Number	Publication Date
GB8704080D0 GB8704080D0 (en)	1987-03-25
GB2201564A GB2201564A (en)	1988-09-01
GB2201564B true GB2201564B (en)	1991-05-15

Family

ID=10612694

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
GB8704080A Expired - Fee Related GB2201564B (en)	1987-02-21	1987-02-21	Telephone exchange systems

Country Status (1)

Country	Link
GB (1)	GB2201564B (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB1085898A (en) *	1963-10-22	1967-10-04	Siemens Ag	Improvements in or relating to telecommunication systems

1987
- 1987-02-21 GB GB8704080A patent/GB2201564B/en not_active Expired - Fee Related

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB1085898A (en) *	1963-10-22	1967-10-04	Siemens Ag	Improvements in or relating to telecommunication systems

Also Published As

Publication number	Publication date
GB2201564A (en)	1988-09-01
GB8704080D0 (en)	1987-03-25

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Legal Events

Date	Code	Title	Description
1993-09-15	732E	Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
1994-03-02	732E	Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
2002-10-09	PCNP	Patent ceased through non-payment of renewal fee	Effective date: 20020221