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Extract from the Register of European Patents

EP About this file: EP1575246

EP1575246 - Method and apparatus for limiting reuse of domain name system response information [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  14.03.2008
Database last updated on 24.04.2024
Most recent event   Tooltip14.03.2008No opposition filed within time limitpublished on 16.04.2008  [2008/16]
Applicant(s)For all designated states
AT&T Corp.
32 Avenue of the Americas
New York, NY 10013-2412 / US
[2005/37]
Inventor(s)01 / Douglis, Frederick
152 Smoke Rise Road
Basking Ridge, NJ New jersey 07920 / US
02 / Rabinovich, Michael
55 Cottage Place
Gillette, NJ New Jersey 07933 / US
03 / Spatscheck, Oliver
15 Lawrence Road
Randolph, NJ New Jersey 07869 / US
 [2005/37]
Representative(s)Harding, Richard Patrick, et al
Marks & Clerk LLP
4220 Nash Court
Oxford Business Park South
Oxford
OX4 2RU / GB
[N/P]
Former [2005/37]Harding, Richard Patrick, et al
Marks & Clerk, 4220 Nash Court, Oxford Business Park South
Oxford OX4 2RU / GB
Application number, filing date05101500.628.02.2005
[2005/37]
Priority number, dateUS2004079807611.03.2004         Original published format: US 798076
[2005/37]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report 
No.:EP1575246
Date:14.09.2005
Language:EN
[2005/37]
Type: B1 Patent specification 
No.:EP1575246
Date:09.05.2007
Language:EN
[2007/19]
Search report(s)(Supplementary) European search report - dispatched on:EP12.07.2005
ClassificationIPC:H04L29/12
[2005/37]
CPC:
H04L61/4511 (EP,US); H04L61/58 (EP,US); H04L67/1001 (EP,US);
H04L67/10015 (EP,US)
Designated contracting statesDE,   FR,   GB [2006/22]
Former [2005/37]AT,  BE,  BG,  CH,  CY,  CZ,  DE,  DK,  EE,  ES,  FI,  FR,  GB,  GR,  HU,  IE,  IS,  IT,  LI,  LT,  LU,  MC,  NL,  PL,  PT,  RO,  SE,  SI,  SK,  TR 
TitleGerman:Verfahren und Anordnung zur Beschränkung der Wiederbenutzung von DNS Antworten[2005/37]
English:Method and apparatus for limiting reuse of domain name system response information[2005/37]
French:Procédé et dispositif pour limiter le réemploi de réponses à des requêtes DNS[2005/37]
Examination procedure22.02.2006Examination requested  [2006/16]
04.05.2006Despatch of a communication from the examining division (Time limit: M04)
28.07.2006Reply to a communication from the examining division
27.11.2006Communication of intention to grant the patent
14.03.2007Fee for grant paid
14.03.2007Fee for publishing/printing paid
Opposition(s)12.02.2008No opposition filed within time limit [2008/16]
Fees paidRenewal fee
05.02.2007Renewal fee patent year 03
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Documents cited:Search[A]US6205477  (JOHNSON RICHARD A [US], et al) [A] 1-20 * abstract * * column 1, line 60 - column 2, line 5 * * column 2, line 30 - line 60 * * column 5, line 62 - column 6, line 33 *;
 [A]US6351743  (DEARDO CARMEN EDWARD [US], et al) [A] 1-20 * abstract * * column 1, line 30 - line 38 * * column 2, line 15 - line 43 * * column 3, line 29 - line 42 *;
 [A]  - MICHELE COLAJANNI AND PHILIP S. YU, "A performance study of robust load sharing strategies for distributed heterogeneous Web server systems", IEEE TRANS KNOWL DATA ENG; IEEE TRANSACTIONS ON KNOWLEDGE AND DATA ENGINEERING MARCH/APRIL 2002, (200203), vol. 14, no. 2, pages 398 - 414, XP002333859 [A] 1-20 * abstract * * paragraph [0001] - paragraph [05.2] *

DOI:   http://dx.doi.org/10.1109/69.991724
 [A]  - COHEN E ET AL, "Proactive caching of DNS records: addressing a performance bottleneck", COMPUTER NETWORKS, ELSEVIER SCIENCE PUBLISHERS B.V., AMSTERDAM, NL, (20030422), vol. 41, no. 6, ISSN 1389-1286, pages 707 - 726, XP004414295 [A] 1-20 * abstract * * paragraph [04.2] *

DOI:   http://dx.doi.org/10.1016/S1389-1286(02)00424-3
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.