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Extract from the Register of European Patents

EP About this file: EP0807610

EP0807610 - Process entailing sol-gel production of silica glass [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  26.04.2002
Database last updated on 03.06.2024
Most recent event   Tooltip26.04.2002No opposition filed within time limitpublished on 12.06.2002  [2002/24]
Applicant(s)For all designated states
LUCENT TECHNOLOGIES INC.
600 Mountain Avenue
Murray Hill, NJ 07974-0636 / US
[N/P]
Former [1997/47]For all designated states
LUCENT TECHNOLOGIES INC.
600 Mountain Avenue
Murray Hill, New Jersey 07974-0636 / US
Inventor(s)01 / Bhandarkar, Suhas, Dattatreya
65 Forge Hill Road
Glen Gardner, New Jersey 08826 / US
02 / MacChesney, John, Burnette
2 Cratetown Road
Lebanon, New Jersey 08833 / US
03 / Johnson, David, Wilfred, Jr.
5 Oakura Lane
Bedminster, New Jersey 07921 / US
04 / Stockert, Thomas, Edward
29 Norwood Terrace
Millburn, New Jersey 07041 / US
[1997/47]
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 [1997/47]Johnston, Kenneth Graham, et al
Lucent Technologies (UK) Ltd, 5 Mornington Road
Woodford Green Essex, IG8 OTU / GB
Application number, filing date97303084.406.05.1997
[1997/47]
Priority number, dateUS1996064585914.05.1996         Original published format: US 645859
[1997/47]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report 
No.:EP0807610
Date:19.11.1997
Language:EN
[1997/47]
Type: B1 Patent specification 
No.:EP0807610
Date:20.06.2001
Language:EN
[2001/25]
Search report(s)(Supplementary) European search report - dispatched on:EP28.08.1997
ClassificationIPC:C03C1/00
[1997/47]
CPC:
C01B33/1417 (EP,US); C03B20/00 (KR); C03C1/006 (EP,US)
Designated contracting statesDE,   FR,   GB,   IT,   NL [1997/47]
TitleGerman:Sol-Gel Verfahren zur Herstellung von Silica-Glas[1997/47]
English:Process entailing sol-gel production of silica glass[1997/47]
French:Procédé entraînant la production de verre de silice par la méthode sol-gel[1997/47]
Examination procedure02.04.1998Request for accelerated examination filed
06.04.1998Examination requested  [1998/23]
01.07.1998Despatch of a communication from the examining division (Time limit: M06)
01.07.1998Decision about request for accelerated examination - accepted: Yes
08.01.1999Reply to a communication from the examining division
29.07.1999Despatch of a communication from the examining division (Time limit: M06)
26.01.2000Reply to a communication from the examining division
16.08.2000Despatch of communication of intention to grant (Approval: Yes)
19.12.2000Communication of intention to grant the patent
23.02.2001Fee for grant paid
23.02.2001Fee for publishing/printing paid
Opposition(s)21.03.2002No opposition filed within time limit [2002/24]
Fees paidRenewal fee
14.05.1999Renewal fee patent year 03
19.05.2000Renewal fee patent year 04
26.03.2001Renewal fee patent year 05
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Documents cited:Search[DA]US5240488  (CHANDROSS EDWIN A [US], et al) [DA] 1 * the whole document *;
 [DA]US5116535  (COCHRANE HECTOR [US]) [DA] 1 * the whole document *;
 [A]EP0300610  (AMERICAN TELEPHONE & TELEGRAPH [US]) [A] 1 * figure 5 *;
 [A]  - CHAPPUIS, J. ET AL, "Rheological properties of dense silica suspensions", MATER. RES. SOC. SYMP. PROC. (1993), 289(FLOW AND MICROSTRUCTURE OF DENSE SUSPENSIONS), 87-94 CODEN: MRSPDH;ISSN: 0272-9172, (1993), XP002038021 [A] 1 * page 94 *
 [A]  - HEATH, D. ET AL, "Influence of pH, electrolyte, and poly(vinyl alcohol) addition on the rheological behavior of aqueous silica (Aerosil) dispersions", J. COLLOID INTERFACE SCI. (1983), 93(2), 320-8 CODEN: JCISA5;ISSN: 0021-9797, (1983), XP002038022 [A] 1 * page 325 - page 327 *

DOI:   http://dx.doi.org/10.1016/0021-9797(83)90416-2
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.