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Extract from the Register of European Patents

EP About this file: EP0524816

EP0524816 - Purification of propylene oxide [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  29.10.1999
Database last updated on 22.08.2024
Most recent event   Tooltip29.10.1999No opposition filed within time limitpublished on 15.12.1999 [1999/50]
Applicant(s)For all designated states
Huntsman Specialty Chemicals Corporation
7114 North Lamar Boulevard
Austin, Texas 78761 / US
[1997/35]
Former [1995/43]For all designated states
TEXACO CHEMICAL INC.
3040 Post Oak Boulevard
Houston, Texas 77056 / US
Former [1993/04]For all designated states
TEXACO CHEMICAL COMPANY
3040 Post Oak Boulevard
Houston, Texas 77056 / US
Inventor(s)01 / Smith, William Alan
7910 Petaca
Austin, Texas 78729 / US
02 / Meyer, Robert Allen
13940 Reflection Drive, Apt. 113
Ballwin, MO 63021 / US
03 / Nguyen, Eileen Tovan
3731 Vineyard
Houston, Texas 77082 / US
[1993/04]
Representative(s)Goddar, Heinz J., et al
Boehmert & Boehmert
Anwaltspartnerschaft mbB
Pettenkoferstrasse 22
80336 München / DE
[N/P]
Former [1997/29]Goddar, Heinz J., Dr., et al
FORRESTER & BOEHMERT Franz-Joseph-Strasse 38
80801 München / DE
Former [1993/04]Green, Mark Charles, et al
Urquhart-Dykes & Lord, 91 Wimpole Street
London W1M 8AH / GB
Application number, filing date92306715.123.07.1992
[1993/04]
Priority number, dateUS1991073636526.07.1991         Original published format: US 736365
[1993/04]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0524816
Date:27.01.1993
Language:EN
[1993/04]
Type: A3 Search report 
No.:EP0524816
Date:01.02.1995
Language:EN
[1995/05]
Type: B1 Patent specification 
No.:EP0524816
Date:23.12.1998
Language:EN
[1998/52]
Search report(s)(Supplementary) European search report - dispatched on:EP15.12.1994
ClassificationIPC:C07D301/32, C07D303/04
[1993/04]
CPC:
C07D301/19 (EP,US); C07D301/32 (EP,US)
Designated contracting statesDE,   FR,   GB [1993/04]
TitleGerman:Reinigung von Propylenoxid[1993/04]
English:Purification of propylene oxide[1993/04]
French:Purification de l'oxyde de propylène[1993/04]
Examination procedure27.06.1995Examination requested  [1995/35]
05.12.1997Despatch of a communication from the examining division (Time limit: M04)
02.02.1998Reply to a communication from the examining division
04.03.1998Despatch of communication of intention to grant (Approval: Yes)
16.06.1998Communication of intention to grant the patent
08.09.1998Fee for grant paid
08.09.1998Fee for publishing/printing paid
Opposition(s)24.09.1999No opposition filed within time limit [1999/50]
Fees paidRenewal fee
21.06.1994Renewal fee patent year 03
27.06.1995Renewal fee patent year 04
02.07.1996Renewal fee patent year 05
07.07.1997Renewal fee patent year 06
10.07.1998Renewal fee patent year 07
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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:Search[A]US2993916  (NORMINGTON JAMES B) [A] 1 * the whole document *;
 [A]EP0193682  (TEXACO DEVELOPMENT CORP [US]) [A] 6 * example - *;
 [D]US4626596  (MARQUIS EDWARD T [US], et al);
 [AD]US4691035  (SANDERSON JOHN R [US], et al) [AD] 1 * claim - *;
 [A]US4772732  (HUANG MAO Y [US], et al) [A] 1 * the whole document *;
 [AD]US4971661  (MEYER ROBERT A [US], et al) [AD] 6 * example - *;
 [PX]US5107002  (SHIH T THOMAS [US]) [PX] 1-5 * the whole document *;
 [PX]US5106458  (MEYER ROBERT A [US], et al) [PX] 1-6* example -; claim - *
 [A]  - CHEMICAL ABSTRACTS, (1968), vol. 68, no. 15, Database accession no. 68425b [A] 1 * abstract *
    [ ] - M.P. VYSOTSKII ET AL, ZH. PRIKL. KHIM., (1967), vol. 40, no. 11, pages 2552 - 2555
 [A]  - CHEMICAL ABSTRACTS, (1968), vol. 68, no. 25, Database accession no. 113713g [A] 1 * abstract *
    [ ] - T. SUZUKI ET AL, NIPPON KAGAKU ZASSHI, (1967), vol. 88, no. 11, pages 1141 - 1144
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.