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Extract from the Register of European Patents

EP About this file: EP0601354

EP0601354 - Dicyanate prepolymers, use and preparation thereof [Right-click to bookmark this link]
StatusPatent revoked
Status updated on  14.01.2000
Database last updated on 09.09.2024
Most recent event   Tooltip29.08.2008Lapse of the patent in a contracting state
New state(s): FR
published on 01.10.2008  [2008/40]
Applicant(s)For all designated states
International Business Machines Corporation
New Orchard Road
Armonk, NY 10504 / US
[N/P]
Former [1994/24]For all designated states
International Business Machines Corporation
Old Orchard Road
Armonk, N.Y. 10504 / US
Inventor(s)01 / Papathomas, Konstantinos I.
75 Coventry Road
Endicott, New York 13760 / US
[1994/24]
Representative(s)Rach, Werner, et al
IBM Deutschland Management & Business Support GmbH Patentwesen u. Urheberrecht
71137 Ehningen / DE
[N/P]
Former [1996/13]Rach, Werner, Dr., et al
IBM Deutschland Informationssysteme GmbH, Patentwesen und Urheberrecht
D-70548 Stuttgart / DE
Former [1994/38]Schäfer, Wolfgang, Dipl.-Ing.
IBM Deutschland Informationssysteme GmbH Patentwesen und Urheberrecht
D-70548 Stuttgart / DE
Former [1994/24]Mönig, Anton, Dipl.-Ing.
IBM Deutschland Informationssysteme GmbH, Patentwesen und Urheberrecht
D-70548 Stuttgart / DE
Application number, filing date93118438.615.11.1993
[1994/24]
Priority number, dateUS1992098760509.12.1992         Original published format: US 987605
[1994/24]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0601354
Date:15.06.1994
Language:EN
[1994/24]
Type: A3 Search report 
No.:EP0601354
Date:17.08.1994
Language:EN
[1994/33]
Type: B1 Patent specification 
No.:EP0601354
Date:18.09.1996
Language:EN
[1996/38]
Search report(s)(Supplementary) European search report - dispatched on:EP29.06.1994
ClassificationIPC:H05K1/03, H01B3/30, C08G73/00, C08G73/06
[1994/24]
CPC:
C08G73/0655 (EP,US); H05K1/0346 (EP,US); Y10T428/31547 (EP,US);
Y10T428/31601 (EP,US)
Designated contracting statesDE,   FR,   GB [1994/24]
TitleGerman:Dicyanatpräpolymere, ihre Verwendung und Herstellung[1994/24]
English:Dicyanate prepolymers, use and preparation thereof[1994/24]
French:Prépolymères de dicyanate, leur utilisation et préparation[1994/24]
Examination procedure21.10.1994Examination requested  [1994/50]
21.03.1995Despatch of a communication from the examining division (Time limit: M04)
26.06.1995Reply to a communication from the examining division
27.10.1995Despatch of communication of intention to grant (Approval: Yes)
12.02.1996Communication of intention to grant the patent
23.02.1996Fee for grant paid
23.02.1996Fee for publishing/printing paid
Opposition(s)Opponent(s)01  14.06.1997    ADMISSIBLE
Lonza AG
Münchensteinerstrasse 38
CH-4002 Basel / CH
 [1997/33]
25.07.1997Invitation to proprietor to file observations on the notice of opposition
30.09.1999Despatch of communication that the patent will be revoked
10.10.1999Legal effect of revocation of patent [2000/09]
Fees paidRenewal fee
15.11.1995Renewal fee patent year 03
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Lapses during opposition  TooltipDE19.12.1996
FR30.11.1997
[2008/40]
Former [1997/17]DE19.12.1996
Documents cited:Search[A]EP0449593  (HI TEK POLYMERS INC [US]) [A] 1,9,11 * examples 3,4; table 1 *;
 [PA]EP0528171  (IBM [US]) [PA] 1,6,9,10 * page 4, line 3 - line 31; example .; claims 1,2,6,7 *;
 [PA]EP0560084  (IBM [US]) [PA] 1,9,10 * page 4, line 28 - page 5, line 4; claims 1,3 *
 [A]  - ANONYMOUS, "New Bisphenol Dicyanate Monomers for Cyclotrimerisation by Reacting Cyanogen Bromide with Bisphenol P or Bisphenol M in Presence of Triethylamine", DATABASE WPI, 2, Derwent World Patents Index, vol. 90, no. 45, Database accession no. 90-340382 [A] 1,9,10 * abstract *
    [ ] - RESEARCH DISCLOSURE, HAVANT GB, (19901010), vol. 318, no. 033, page 821
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.