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Extract from the Register of European Patents

EP About this file: EP0220448

EP0220448 - Process for increasing the solidity of a porous body [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  24.09.1992
Database last updated on 28.02.2026
Most recent event   Tooltip27.06.2008Change - representativepublished on 30.07.2008  [2008/31]
Applicant(s)For all designated states
IBACH Steinkonservierungen GmbH & Co. KG
Tannenstrasse 8
D-96120 Bischberg / DE
[1987/19]
Inventor(s)01 / Ibach, Hermann Wolf
Stockder Strasse 138
D-5630 Remscheid 1 / DE
[1987/19]
Representative(s)Cohausz & Florack
Patent- & Rechtsanwälte
Partnerschaftsgesellschaft mbB
Bleichstrasse 14
40211 Düsseldorf / DE
[N/P]
Former [2008/31]Cohausz & Florack
Patent- und Rechtsanwälte Bleichstrasse 14
40211 Düsseldorf / DE
Former [1987/19]Cohausz & Florack Patentanwälte
Postfach 33 02 29
D-40435 Düsseldorf / DE
Application number, filing date86112587.011.09.1986
[1987/19]
Priority number, dateDE1985353406225.09.1985         Original published format: DE 3534062
[1987/19]
Filing languageDE
Procedural languageDE
PublicationType: A2 Application without search report 
No.:EP0220448
Date:06.05.1987
Language:DE
[1987/19]
Type: A3 Search report 
No.:EP0220448
Date:26.04.1989
Language:DE
[1989/17]
Type: B1 Patent specification 
No.:EP0220448
Date:21.11.1991
Language:DE
[1991/47]
Search report(s)(Supplementary) European search report - dispatched on:EP09.03.1989
ClassificationIPC:C04B41/48
[1987/19]
CPC:
C04B41/009 (EP); C04B41/48 (EP)
C-Set:
C04B41/009, C04B38/00 (EP);
C04B41/48, C04B41/4515, C04B41/4521 (EP)
Designated contracting statesAT,   BE,   CH,   DE,   FR,   GB,   IT,   LI,   NL,   SE [1987/19]
TitleGerman:Verfahren zum Erhöhen der Festigkeit eines porösen Körpers[1987/19]
English:Process for increasing the solidity of a porous body[1987/19]
French:Procédé pour améliorer la solidité d'un corps poreux[1987/19]
Examination procedure24.05.1989Examination requested  [1989/30]
18.04.1991Despatch of communication of intention to grant (Approval: Yes)
15.05.1991Communication of intention to grant the patent
13.07.1991Fee for grant paid
13.07.1991Fee for publishing/printing paid
Opposition(s)22.08.1992No opposition filed within time limit [1992/46]
Fees paidRenewal fee
24.08.1988Renewal fee patent year 03
23.08.1989Renewal fee patent year 04
22.08.1990Renewal fee patent year 05
23.08.1991Renewal fee patent year 06
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