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Extract from the Register of European Patents

EP About this file: EP0214412

EP0214412 - Use of salts of water soluble condensation products of naphthalene sulfonic acid and formaldehyde as an additive for inorganic binders and building materials [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  30.01.1992
Database last updated on 20.05.2024
Most recent event   Tooltip30.01.1992No opposition filed within time limitpublished on 18.03.1992 [1992/12]
Applicant(s)For:BE  CH  DE  FR  GB  IT  LI  LU  NL  SE  AT 
Chemie Linz Gesellschaft m.b.H.
St.Peter-Strasse 25
A-4021 Linz / AT
[1990/23]
Former [1987/12]For:BE  CH  FR  GB  IT  LI  LU  NL  SE  AT 
CHEMIE LINZ AKTIENGESELLSCHAFT
St. Peter-Strasse 25
A-4020 Linz / AT
For:DE 
Lentia Gesellschaft mit beschränkter Haftung
Arabellastrasse 4 Postfach 81 05 08
D-8000 München 81 / DE
Inventor(s)01 / Pieh, Stefan, Dr.
St.Peter-Str.25
A-4021 Linz / AT
02 / Werenka, Christian
Mitterbauerstrasse 14
A-4052 Ansfelden / AT
[1991/13]
Former [1987/12]01 / Pieh, Stefan, Dr.
Forsthausstrasse 39a
A-4060 Leonding / AT
02 / Werenka, Christian
Mitterbauerstrasse 14
A-4052 Ansfelden / AT
Representative(s)Kunz, Ekkehard
Agrolinz Melamin GmbH Patentabteilung, St. Peter-Strasse 25
4021 Linz / AT
[N/P]
Former [1990/23]Kunz, Ekkehard, Dr.
Chemie Linz GmbH Abteilung Patente St. Peter-Str. 25
A-4021 Linz / AT
Application number, filing date86109840.817.07.1986
[1987/12]
Priority number, dateDE1985353025823.08.1985         Original published format: DE 3530258
[1987/12]
Filing languageDE
Procedural languageDE
PublicationType: A1 Application with search report 
No.:EP0214412
Date:18.03.1987
Language:DE
[1987/12]
Type: B1 Patent specification 
No.:EP0214412
Date:27.03.1991
Language:DE
[1991/13]
Search report(s)(Supplementary) European search report - dispatched on:EP23.01.1987
ClassificationIPC:C04B24/22, C08G16/02
[1987/12]
CPC:
C04B24/226 (EP,US); C08G16/0237 (EP,US); C08G16/04 (EP,US)
Designated contracting statesAT,   BE,   CH,   DE,   FR,   GB,   IT,   LI,   LU,   NL,   SE [1987/12]
TitleGerman:Verwendung von Salzen wasserlöslicher Naphthalinsulfonsäure-Formaldehydkondensate als Zusatzmittel für anorganische Bindemittel und Baustoff[1991/13]
English:Use of salts of water soluble condensation products of naphthalene sulfonic acid and formaldehyde as an additive for inorganic binders and building materials[1987/12]
French:Utilisation de sels de produits de condensation solubles de l'acide naphtalène sulfonique et du formaldéhyde comme additif pour liants et matériaux de construction minérales[1987/12]
Former [1987/12]Verwendung von Salzen waserlöslicher Naphthalinsulfonsäure-Formaldehydkondensate als Zusatzmittel für anorganische Bindemittel und Baustoff
Examination procedure17.07.1986Examination requested  [1987/12]
25.01.1989Despatch of a communication from the examining division (Time limit: M04)
05.05.1989Reply to a communication from the examining division
27.11.1989Despatch of a communication from the examining division (Time limit: M04)
09.03.1990Reply to a communication from the examining division
11.06.1990Despatch of communication of intention to grant (Approval: Yes)
26.09.1990Communication of intention to grant the patent
09.11.1990Fee for grant paid
09.11.1990Fee for publishing/printing paid
Opposition(s)28.12.1991No opposition filed within time limit [1992/12]
Fees paidRenewal fee
28.06.1988Renewal fee patent year 03
20.06.1989Renewal fee patent year 04
20.06.1990Renewal fee patent year 05
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Documents cited:Search[AD]JP5861115  ;
 [A]JP5896618  ;
 [AD]US3277162  (CHARLES JOHNSON ROBERT);
 [A]EP0073606  (DIAMOND SHAMROCK CORP [US])
 [AD]  - PATENTS ABSTRACTS OF JAPAN, Band 7, Nr. 147 (C-173)(1292), 28. Juni 1983; & JP-A-58 61 115 (SANYO KASEI KOGYO K.K.) 12. April 1983, & JP5861115 A 00000000
 [A]  - CHEMICAL ABSTRACTS, Band 99, Nr. 18, 1983, Seite 311, Nr. 145082g, Columbus, Ohio, US; & JP-A-58 96 618 (NIPPON SODA CO., LTD.) 08.06.1983 (Kat. D), & JP5896618 A 00000000
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.