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Extract from the Register of European Patents

EP About this file: EP0166252

EP0166252 - Production process of pre-foamed particles [Right-click to bookmark this link]
StatusPatent maintained as amended
Status updated on  02.09.1994
Database last updated on 26.03.2025
Most recent event   Tooltip02.09.1994Patent maintained (B2 publication)published on 19.10.1994 [1994/42]
Applicant(s)For all designated states
Japan Styrene Paper Corporation
1-1, 2-chome, Uchisaiwai-cho Chiyoda-ku
Tokyo / JP
[N/P]
Former [1986/01]For all designated states
Japan Styrene Paper Corporation
1-1, 2-chome, Uchisaiwai-cho
Chiyoda-ku Tokyo / JP
Inventor(s)01 / Akiyama, Hiroyuki
11-17, Nakahara 1-chome
Hiratsuka-shi Kanagawa-ken / JP
02 / Kubota, Takashi
3268-249, Nishinomiya-cho
Utsunomiya-shi Tochigi-ken / JP
03 / Okabe, Shigeru
1133, Kogura, Imaichi-shi
Tochigi-ken / JP
04 / Iizuka, Koji
Sunrich Heights 202 431-87 Tsuruta-cho
Utsunomiya-shi Tochigi-ken / JP
05 / Tokoro, Hisao
839, Ohaza-Kamikogura Kamikawachi-mura
Kawachi-gun Tochigi-ken / JP
[1986/01]
Representative(s)Kraus, Walter, et al
Patentanwälte Kraus, Weisert & Partner Thomas-Wimmer-Ring 15
80539 München / DE
[N/P]
Former [1986/01]Kraus, Walter, Dr., et al
Patentanwälte Kraus, Weisert & Partner Thomas-Wimmer-Ring 15
D-80539 München / DE
Application number, filing date85106595.329.05.1985
[1986/01]
Priority number, dateJP1984011007330.05.1984         Original published format: JP 11007384
[1986/01]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0166252
Date:02.01.1986
Language:EN
[1986/01]
Type: A3 Search report 
No.:EP0166252
Date:01.04.1987
Language:EN
[1987/14]
Type: B1 Patent specification 
No.:EP0166252
Date:19.12.1990
Language:EN
[1990/51]
Type: B2 New European patent specification 
No.:EP0166252
Date:19.10.1994
Language:EN
[1994/42]
Search report(s)(Supplementary) European search report - dispatched on:EP10.02.1987
ClassificationIPC:C08J9/16, C08J9/22
[1986/01]
CPC:
C08J9/16 (EP,US); C08J9/228 (EP,US)
Designated contracting statesDE,   FR,   GB [1986/01]
TitleGerman:Verfahren zur Herstellung von vorgeschäumten Partikeln[1986/01]
English:Production process of pre-foamed particles[1986/01]
French:Procédé pour préparer des perles préexpansées[1986/01]
Examination procedure13.07.1987Examination requested  [1987/37]
17.11.1988Despatch of a communication from the examining division (Time limit: M04)
20.03.1989Reply to a communication from the examining division
14.07.1989Despatch of a communication from the examining division (Time limit: M02)
14.09.1989Reply to a communication from the examining division
26.10.1989Despatch of a communication from the examining division (Time limit: M02)
05.01.1990Reply to a communication from the examining division
01.03.1990Despatch of communication of intention to grant (Approval: Yes)
31.05.1990Communication of intention to grant the patent
06.08.1990Fee for grant paid
06.08.1990Fee for publishing/printing paid
Opposition(s)Opponent(s)01  14.09.1991  27.09.1991  ADMISSIBLE
Hüls Aktiengesellschaft
Patentabteilung/PB 15
D-45764 Marl / DE
 02  18.09.1991  18.10.1991  ADMISSIBLE
BASF Aktiengesellschaft
-Patentabteilung - C6- Carl-Bosch-Strasse 38
D-67056 Ludwigshafen / DE
 [N/P]
Former [1991/46]
Opponent(s)01  14.09.1991  27.09.1991  ADMISSIBLE
Hüls Aktiengesellschaft
Patentabteilung/PB 15
D-45764 Marl / DE
 02  18.09.1991  18.10.1991  ADMISSIBLE
BASF Aktiengesellschaft, Ludwigshafen
-Patentabteilung - C6- Carl-Bosch-Strasse 38
D-67056 Ludwigshafen / DE
Former [1991/45]
Opponent(s)01  14.09.1991  27.09.1991  ADMISSIBLE
Hüls Aktiengesellschaft
Patentabteilung/PB 15
D-45764 Marl / DE
24.10.1991Invitation to proprietor to file observations on the notice of opposition
08.04.1992Reply of patent proprietor to notice(s) of opposition
17.07.1992Despatch of a communication from the opposition division (Time limit: M02)
24.09.1992Reply to a communication from the opposition division
14.12.1993Legal effect of interlocutory decision in opposition
14.12.1993Date of oral proceedings
25.01.1994Despatch of minutes of oral proceedings
31.01.1994Despatch of interlocutory decision in opposition
13.05.1994Despatch of communication that the patent will be maintained as amended
05.08.1994Fee for printing new specification paid
Fees paidRenewal fee
29.04.1987Renewal fee patent year 03
03.05.1988Renewal fee patent year 04
10.04.1989Renewal fee patent year 05
30.05.1990Renewal fee patent year 06
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Documents cited:Search[A]GB1047341  ;
 [A]EP0041380  (SEIKISUI CHEMICAL CO LTD [JP]);
 [A]GB2080813  (JAPAN STYRENE PAPER CORP);
 [A]US4360484  (RUBENS LOUIS C)
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.