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Extract from the Register of European Patents

EP About this file: EP0542478

EP0542478 - Pin fin heat sink including flow enhancement [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  10.01.1997
Database last updated on 02.11.2024
Most recent event   Tooltip10.01.1997No opposition filed within time limitpublished on 26.02.1997 [1997/09]
Applicant(s)For all designated states
AT&T Corp.
32 Avenue of the Americas
New York, NY 10013-2412 / US
[1994/40]
Former [1993/20]For all designated states
AT&T Corp.
32 Avenue of the Americas
New York, NY 10013-2412 / US
Inventor(s)01 / Azar, Kaveh
15 Blue Hill Drive
Westwood, Massachusetts 02090 / US
[1993/20]
Representative(s)Johnston, Kenneth Graham, et al
Lucent Technologies EUR-IP UK Ltd Unit 18, Core 3 Workzone Innova Business Park Electric Avenue
Enfield, EN3 7XB / GB
[N/P]
Former [1993/20]Johnston, Kenneth Graham, et al
AT&T (UK) Ltd. 5 Mornington Road
Woodford Green Essex, IG8 OTU / GB
Application number, filing date92310149.705.11.1992
[1993/20]
Priority number, dateUS1991079089712.11.1991         Original published format: US 790897
[1993/20]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report 
No.:EP0542478
Date:19.05.1993
Language:EN
[1993/20]
Type: B1 Patent specification 
No.:EP0542478
Date:06.03.1996
Language:EN
[1996/10]
Search report(s)(Supplementary) European search report - dispatched on:EP26.02.1993
ClassificationIPC:F28F3/02, H05K7/20, H01L23/467
[1993/20]
CPC:
F28F1/124 (EP,US); F28F3/02 (KR); F28F3/022 (EP,US);
H01L23/3677 (EP,US); H01L2924/0002 (EP,US); H01L2924/3011 (EP,US)
C-Set:
H01L2924/0002, H01L2924/00 (EP,US)
Designated contracting statesDE,   FR,   GB,   IT,   SE [1993/20]
TitleGerman:Wärmesenke mit Stiften und Strömungsverbesserung[1993/20]
English:Pin fin heat sink including flow enhancement[1993/20]
French:Puits de chaleur à picots et amélioration du flux[1993/20]
Examination procedure05.11.1993Examination requested  [1994/01]
26.05.1994Despatch of a communication from the examining division (Time limit: M06)
22.11.1994Reply to a communication from the examining division
15.05.1995Despatch of communication of intention to grant (Approval: Yes)
11.09.1995Communication of intention to grant the patent
09.11.1995Fee for grant paid
09.11.1995Fee for publishing/printing paid
Opposition(s)07.12.1996No opposition filed within time limit [1997/09]
Fees paidRenewal fee
16.11.1994Renewal fee patent year 03
17.11.1995Renewal fee patent year 04
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Documents cited:Search[A]GB537733  (BRITISH THOMSON HOUSTON CO LTD);
 [A]FR1015488  (AIR PREHEATER);
 [A]FR2499233  (VALEO [FR]);
 [A]EP0082051  (THOMSON CSF [FR]);
 [A]EP0124421  (THOMSON CSF [FR]);
 [A]GB2165704  (TERAYDNE INC);
 [A]EP0219657  (IBM [US]);
 [A]EP0246432  (IBM [US]);
 [A]GB2195056  (TERADYNE INC);
 [A]DE8411960U
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.