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Extract from the Register of European Patents

EP About this file: EP0487585

EP0487585 - VIDEO FILTER [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  25.11.1995
Database last updated on 06.11.2024
Most recent event   Tooltip16.10.2009Change - representativepublished on 18.11.2009  [2009/47]
Applicant(s)For all designated states
BRITISH TELECOMMUNICATIONS public limited company
81 Newgate Street London
EC1A 7AJ / GB
[N/P]
Former [1993/28]For all designated states
BRITISH TELECOMMUNICATIONS public limited company
81 Newgate Street
London EC1A 7AJ / GB
Former [1992/23]For all designated states
BRITISH TELECOMMUNICATIONS public limited company
81 Newgate Street
London EC1A 7AJ / GB
Inventor(s)01 / WHYBRAY, Michael, William
White House The Street
Nacton, Ipswich Suffolk IP10 OHD / GB
02 / HOPPER, Robert, William
46 Sidegate Lane Ipswich
Suffolk IP4 4HX / GB
[1992/23]
Representative(s)Roberts, Simon Christopher, et al
BT Group Legal
Intellectual Property Department
PP C5A. BT Centre
81 Newgate Street, London
EC1A 7AJ / GB
[N/P]
Former [2009/47]Roberts, Simon Christopher, et al
BT Group Legal Intellectual Property Department PP C5A. BT Centre 81 Newgate Street London
EC1A 7AJ / GB
Former [1993/42]Roberts, Simon Christopher, et al
BT Group Legal Services Intellectual Property Department 151 Gower Street
London WC1E 6BA / GB
Former [1992/23]Greenwood, John David
British Telecom Intellectual Property Unit 151 Gower Street
London WC1E 6BA / GB
Application number, filing date90912548.609.08.1990
[1992/23]
WO1990GB01252
Priority number, dateGB1989001855915.08.1989         Original published format: GB 8918559
[1992/23]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO9103123
Date:07.03.1991
Language:EN
[1991/06]
Type: A1 Application with search report 
No.:EP0487585
Date:03.06.1992
Language:EN
The application published by WIPO in one of the EPO official languages on 07.03.1991 takes the place of the publication of the European patent application.
[1992/23]
Type: B1 Patent specification 
No.:EP0487585
Date:25.01.1995
Language:EN
[1995/04]
Search report(s)International search report - published on:EP07.03.1991
ClassificationIPC:H04N5/21
[1992/23]
CPC:
H04N5/21 (EP,US)
Designated contracting statesAT,   BE,   CH,   DE,   DK,   ES,   FR,   GB,   IT,   LI,   LU,   NL,   SE [1992/23]
TitleGerman:VIDEOFILTER[1992/23]
English:VIDEO FILTER[1992/23]
French:FILTRE VIDEO[1992/23]
Entry into regional phase24.01.1992National basic fee paid 
24.01.1992Designation fee(s) paid 
24.01.1992Examination fee paid 
Examination procedure15.02.1990Request for preliminary examination filed
International Preliminary Examining Authority: GB
24.01.1992Examination requested  [1992/23]
15.03.1994Despatch of communication of intention to grant (Approval: No)
25.07.1994Despatch of communication of intention to grant (Approval: later approval)
01.08.1994Communication of intention to grant the patent
07.11.1994Fee for grant paid
07.11.1994Fee for publishing/printing paid
Opposition(s)26.10.1995No opposition filed within time limit [1996/03]
Fees paidRenewal fee
02.07.1992Renewal fee patent year 03
15.07.1993Renewal fee patent year 04
04.07.1994Renewal fee patent year 05
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Cited inInternational search   [ ] - Proceedings of the I.E.E..-G, Volume 127, No. 2, April 1980, (Stevenage GB), T.J. DENNIS: "Nonlinear Temporal Filter for Television Picture Noise Reduction", pages 52-56 see page 52, left-hand column, line 11 - page 53, right-hand columnline 13
The EPO accepts no responsibility for the accuracy of data originating from other authorities; in particular, it does not guarantee that it is complete, up to date or fit for specific purposes.