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Extract from the Register of European Patents

EP About this file: EP0212094

EP0212094 - Method for utilizing the distillation residues of phthalic acid anhydride and/or maleic acid anhydride [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  19.09.1989
Database last updated on 12.11.2024
Most recent event   Tooltip19.09.1989No opposition filed within time limitpublished on 08.11.1989 [1989/45]
Applicant(s)For all designated states
HÜLS AKTIENGESELLSCHAFT
45764 Marl / DE
[N/P]
Former [1987/10]For all designated states
HÜLS AKTIENGESELLSCHAFT
D-45764 Marl / DE
Inventor(s)01 / Scharf, Helmut, Dr.
Kilianstrasse 75
D-4235 Schermbeck / DE
02 / Krix, Wilfried
Randebrockstrasse 3
D-4250 Bottrop / DE
[1987/10]
Application number, filing date86107467.202.06.1986
[1987/10]
Priority number, dateDE1985352491912.07.1985         Original published format: DE 3524919
[1987/10]
Filing languageDE
Procedural languageDE
PublicationType: A1 Application with search report 
No.:EP0212094
Date:04.03.1987
Language:DE
[1987/10]
Type: B1 Patent specification 
No.:EP0212094
Date:17.11.1988
Language:DE
[1988/46]
Search report(s)(Supplementary) European search report - dispatched on:EP04.12.1986
ClassificationIPC:C07D307/89, C07D307/60, C10L1/02, C10J3/00, F23G5/033
[1987/10]
CPC:
C07C51/573 (EP,US)
C-Set:
C07C51/573, C07C57/145 (US,EP);
C07C51/573, C07C63/16 (EP,US)
Designated contracting statesAT,   BE,   DE,   FR,   GB,   IT [1987/10]
TitleGerman:Verfahren zur Verwertung von Phthalsäureanhydrid- und/oder Maleinsäureanhydrid-Destillationsrückständen[1987/10]
English:Method for utilizing the distillation residues of phthalic acid anhydride and/or maleic acid anhydride[1987/10]
French:Procédé d'utilisation de résidus de distillation d'anhydride phtalique et/ou d'anhydride maléique[1987/10]
Examination procedure13.03.1987Examination requested  [1987/20]
18.03.1988Despatch of communication of intention to grant (Approval: Yes)
20.05.1988Communication of intention to grant the patent
08.07.1988Fee for grant paid
08.07.1988Fee for publishing/printing paid
Opposition(s)18.08.1989No opposition filed within time limit [1989/45]
Fees paidRenewal fee
28.05.1988Renewal fee patent year 03
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Responsibility for the accuracy, completeness or quality of the data displayed under the link provided lies entirely with the Unified Patent Court.
Documents cited:SearchAT261790B  [ ] (EXXON RESEARCH ENGINEERING CO [US]);
 DE1926919  [ ];
 GB2034349  [ ] (TEXACO DEVELOPMENT CORP)
    [ ] - ULLMANNS ENCYKLOPADIE DER TECHNISCHEN CHEMIE, 4. Auflage, Band 16, 1978 VERLAG CHEMIE GMBH, Weinheim, New York Seiten 408-411 * Seite 411, Spalte 1, letzte 3 Zeilen *
    [ ] - ULLMANNS ENCLKOPADIE DER TECHNISCHEN CHEMIE, 4. Auflage, Band 18, 1979 VERLAG CHEMIE GMBH, Weinheim, Deerfield Beach, Florida, Basel Seiten 522-532 * Seite 531, Spalte 1, Zeilen 43-47 *
Examination   - ULLMANNS ENCYKLOPÄDIE DER TECHNISCHEN CHEMIE, 4. Auflage, Band 18, 1979, VERLAG CHEMIE GMBH, Weinheim, Deerfield Beach, Florida, Basel, pp. 522-532
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.