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Extract from the Register of European Patents

EP About this file: EP0250248

EP0250248 - Block copolymer, method of making the same, diamine precursors of the same method, method of making such diamines and end products comprising the block copolymer [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  11.09.1998
Database last updated on 24.04.2024
Most recent event   Tooltip11.09.1998No opposition filed within time limitpublished on 28.10.1998 [1998/44]
Applicant(s)For all designated states
MINNESOTA MINING AND MANUFACTURING COMPANY
3M Center, P.O. Box 33427
St. Paul, MN 55133-3427 / US
[N/P]
Former [1987/52]For all designated states
MINNESOTA MINING AND MANUFACTURING COMPANY
3M Center, P.O. Box 33427
St. Paul, Minnesota 55133-3427 / US
Inventor(s)01 / Leir, Charles M Minnesota Mining and
Manufacturing Company 2501 Hudson Road
P.O. Box 33427 St.PAul Minnesota 55133 / US
02 / Hoffman, Jerome J Minnesota Mining and
Manufacturing Company 2501 Hudson Road
P.O. Box 33427 St.PAul Minnesota 55133 / US
03 / Tushaus, Leonard A Minnesota Mining and
Manufacturing Company 2501 Hudson Road
P.O. Box 33427 St.PAul Minnesota 55133 / US
04 / Wiederholt, Gary T Minnesota Mining and
Manufacturing Company 2501 Hudson Road
P.O. Box 33427 St.PAul Minnesota 55133 / US
[1987/52]
Representative(s)Baillie, Iain Cameron, et al
c/o Ladas & Parry 52-54 High Holborn
London WC1V 6RR / GB
[1996/23]
Former [1987/52]Baillie, Iain Cameron, et al
c/o Ladas & Parry Altheimer Eck 2
D-80331 München / DE
Application number, filing date87305431.618.06.1987
[1987/52]
Priority number, dateUS1986087691820.06.1986         Original published format: US 876918
[1987/52]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0250248
Date:23.12.1987
Language:EN
[1987/52]
Type: A3 Search report 
No.:EP0250248
Date:12.04.1989
Language:EN
[1989/15]
Type: B1 Patent specification 
No.:EP0250248
Date:05.11.1997
Language:EN
[1997/45]
Search report(s)(Supplementary) European search report - dispatched on:EP23.02.1989
ClassificationIPC:C08G77/54, C08G18/38, C08G18/73, C08G18/74, C09J183/10
[1997/45]
CPC:
C08G18/61 (EP); C08G77/54 (KR); C08G18/38 (KR);
C08G77/458 (EP)
Former IPC [1987/52]C08G77/54, C08G18/38, C08G18/73, C08G18/74, C09J3/16
Designated contracting statesBE,   CH,   DE,   ES,   FR,   GB,   IT,   LI,   NL,   SE [1987/52]
TitleGerman:Blockcopolymer, Verfahren zu seiner Herstellung, Diaminvorprodukte für dieses Verfahren bzw. Verfahren zu deren Herstellung sowie das Blockcopolymer enthaltende Endprodukte[1997/45]
English:Block copolymer, method of making the same, diamine precursors of the same method, method of making such diamines and end products comprising the block copolymer[1987/52]
French:Copolymère séquencé, sa préparation, diamines comme précurseurs pour sa préparation, méthode pour la préparation de ces diamines et produits finals contenant ce copolymère séquencé[1987/52]
Former [1987/52]Blockcopolymer, Verfahren zu seiner Herstellung, Diaminvorprodukte für das gleiche Verfahren, Verfahren zur Herstellung solcher Diamine und dieses Blockcopolymer enthaltende Endprodukte
MiscellaneousEPB 1996/32: Teilanmeldung 96107085.1 eingereicht am 06/05/96
EPB 1996/32: Divisional application 96107085.1 filed on 06/05/96
EPB 1996/32: Demande divisionnaire 96107085.1 déposée le 06/05/96
Examination procedure27.09.1989Examination requested  [1989/47]
11.11.1991Despatch of a communication from the examining division (Time limit: M06)
13.05.1992Reply to a communication from the examining division
21.01.1993Despatch of a communication from the examining division (Time limit: M04)
01.06.1993Reply to a communication from the examining division
01.12.1993Despatch of a communication from the examining division (Time limit: M04)
11.04.1994Reply to a communication from the examining division
27.05.1994Despatch of a communication from the examining division (Time limit: M06)
06.12.1994Reply to a communication from the examining division
15.02.1995Despatch of a communication from the examining division (Time limit: M02)
12.04.1995Reply to a communication from the examining division
20.03.1996Despatch of communication of intention to grant (Approval: Yes)
25.11.1996Fee for grant paid
25.11.1996Fee for publishing/printing paid
06.12.1996Despatch of a communication from the examining division (Time limit: M02)
05.02.1997Reply to a communication from the examining division
21.03.1997Communication of intention to grant the patent
Divisional application(s)EP96107085.1  / EP0737700
Opposition(s)06.08.1998No opposition filed within time limit [1998/44]
Fees paidRenewal fee
22.05.1989Renewal fee patent year 03
17.05.1990Renewal fee patent year 04
22.05.1991Renewal fee patent year 05
20.05.1992Renewal fee patent year 06
27.05.1993Renewal fee patent year 07
27.05.1994Renewal fee patent year 08
26.05.1995Renewal fee patent year 09
28.05.1996Renewal fee patent year 10
27.05.1997Renewal fee patent year 11
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Documents cited:SearchEP0078958  [ ] (BAYER AG [DE]);
 US4570010  [ ] (STUBER FRED A [US], et al)
Examination   - W.Noll, Chemie und Technologie der Silicone, 2. Ed. (1968), Verlag Chemie, p. 89
    - POLYMER, vol. 25, December 1984, pages 1800-1816, Butterworths I. YILGOR et al.: "Segmented organosiloxane copolymers. 1. Synthesis of siloxane-urea copolymers"
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.