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Extract from the Register of European Patents

EP About this file: EP0656033

EP0656033 - HOLLOW POLYMER LATEX PARTICLES [Right-click to bookmark this link]
StatusOpposition rejected
Status updated on  24.03.2000
Database last updated on 02.11.2024
Most recent event   Tooltip24.03.2000Opposition rejectedpublished on 10.05.2000 [2000/19]
Applicant(s)For all designated states
THE DOW CHEMICAL COMPANY
2030 Dow Center
Midland, Michigan 48674 / US
[1997/48]
Former [1995/23]For all designated states
THE DOW CHEMICAL COMPANY
2030 Dow Center, Abbott Road
Midland, Michigan 48640 / US
Inventor(s)01 / LEE, Dolk
5109 Nakoma Drive
Midland, MI 48640 / US
02 / MULDERS, Michael, R.
901 West Nebobish Road
Essexville, MI 48732 / US
03 / NICHOLSON, Dwayne, J.
2364 Smith Street
Sandford, MI 48657 / US
04 / LEADBETTER, Arthur, N.
5104 Foxcroft Drive
Midland, MI 48642 / US
[1995/23]
Representative(s)Casalonga, Axel, et al
Casalonga & Partners Bayerstrasse 73
80335 München / DE
[N/P]
Former [1995/23]Casalonga, Axel, et al
BUREAU D.A. CASALONGA - JOSSE Morassistrasse 8
D-80469 München / DE
Application number, filing date92919081.719.08.1992
[1995/23]
WO1992US07025
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO9404603
Date:03.03.1994
Language:EN
[1994/06]
Type: A1 Application with search report 
No.:EP0656033
Date:07.06.1995
Language:EN
The application published by WIPO in one of the EPO official languages on 03.03.1994 takes the place of the publication of the European patent application.
[1995/23]
Type: B1 Patent specification 
No.:EP0656033
Date:21.05.1997
Language:EN
[1997/21]
Search report(s)International search report - published on:EP03.03.1994
ClassificationIPC:C08J9/00, C08F265/00, B01J13/14
[1995/23]
CPC:
B01J13/14 (EP,KR); C08J9/00 (KR); C08F265/00 (KR);
C08F285/00 (EP); C09D151/003 (EP); D21H19/42 (EP);
D21H19/56 (EP); D21H15/10 (EP); D21H17/375 (EP);
D21H19/54 (EP) (-)
C-Set:
C08F285/00, C08F212/08 (EP)
Designated contracting statesAT,   BE,   CH,   DE,   ES,   FR,   GB,   IT,   LI,   NL,   SE [1995/23]
TitleGerman:HOHLE LATEX-POLYMERTEILCHEN[1997/21]
English:HOLLOW POLYMER LATEX PARTICLES[1995/23]
French:PARTICULES CREUSES DE LATEX POLYMERE[1995/23]
Former [1995/23]VERFAHREN ZUR HERSTELLUNG VON HOHLEN LATEX-POLYMERTEILCHEN
Entry into regional phase14.02.1995National basic fee paid 
14.02.1995Designation fee(s) paid 
14.02.1995Examination fee paid 
Examination procedure02.03.1994Request for preliminary examination filed
International Preliminary Examining Authority: EP
14.02.1995Examination requested  [1995/23]
31.05.1996Despatch of communication of intention to grant (Approval: No)
19.11.1996Despatch of communication of intention to grant (Approval: later approval)
25.11.1996Communication of intention to grant the patent
13.02.1997Fee for grant paid
13.02.1997Fee for publishing/printing paid
Opposition(s)Opponent(s)01  16.02.1998   
BASF Aktiengesellschaft
-Patentabteilung - C6- Carl-Bosch-Strasse 38
D-67056 Ludwigshafen / DE
Opponent's representative
Riedl, Peter (DE), et al, et al
Reitstötter, Kinzebach & Partner (GbR) Patentanwälte Postfach 86 06 49
D-81633 München / DE
 [N/P]
Former [1998/15]
Opponent(s)01  16.02.1998   
BASF Aktiengesellschaft, Ludwigshafen
-Patentabteilung - C6- Carl-Bosch-Strasse 38
D-67056 Ludwigshafen / DE
Opponent's representative
Riedl, Peter (DE), et al, et al
Reitstötter, Kinzebach & Partner Patentanwälte Sternwartstrasse 4
D-81679 München / DE
01.04.1998Invitation to proprietor to file observations on the notice of opposition
24.09.1998Reply of patent proprietor to notice(s) of opposition
15.12.1999Date of despatch of rejection of opposition
25.12.1999Legal effect of rejection of opposition [2000/19]
Fees paidRenewal fee
14.02.1995Renewal fee patent year 03
29.05.1995Renewal fee patent year 04
28.05.1996Renewal fee patent year 05
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Lapses during opposition  TooltipBE21.05.1997
[1998/10]
Cited inInternational search[A]US4427836  (KOWALSKI ALEXANDER [US], et al);
 [A]US4594363  (BLANKENSHIP ROBERT M [US], et al);
 [A]US4880842  (KOWALSKI ALEXANDER [US], et al);
 [T]US5157084  (LEE DO I [US], et al)
 [A]  - Chemical Abstracts, volume 115, no 15, 14 October 1991, (Columbus, Ohio, US), Vanderhoff J.W. et al, "Preparation of soft hydrophilic polymer core/hard hydrophobic polymer shell particles for microvoid coatings by seeded emulsion polymerization", 9, THE ABSTRACT No 159942y, Polym. Mater. Sci. Eng. 1991, 64 15, 345-346
Examination   - Vanderhoff J.W. et al, "Preparation of soft hydrophilic polymer core/hard hydrophobic polymer shell particles for microvoid coatings by seeded emulsion polymerization", 9, THE ABSTRACT No 159942y, Polym. Mater. Sci. Eng. 1991, 64 15, 345-346
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.