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Extract from the Register of European Patents

EP About this file: EP0422203

EP0422203 - LIQUID FEED INJECTION IN A CHLOROMETHANES PROCESS [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  03.12.1994
Database last updated on 31.08.2024
Most recent event   Tooltip03.12.1994No opposition filed within time limitpublished on 25.01.1995 [1995/04]
Applicant(s)For all designated states
THE DOW CHEMICAL COMPANY
2030 Dow Center
Midland, Michigan 48674 / US
[N/P]
Former [1991/16]For all designated states
THE DOW CHEMICAL COMPANY
2030 WHDC Abbott Road
Midland Michigan 48674 / US
Inventor(s)01 / WEST, David, H.
10165 Darryl Drive
Baton Rouge, LA 70815 / US
02 / HEBERT, Lawrence, A.
4420 Downing Drive
Baton Rouge, LA 70809 / US
03 / BOWLIN, Roger, L.
9687 Gene Buckel Avenue
Denham Springs, LA 70726 / US
04 / HOLBROOK, Michael, T.
7525 Cardiff
Baton Rouge, LA 70808 / US
[1991/16]
Representative(s)Sternagel, Hans-Günther, et al
Patentanwälte Sternagel & Fleischer Braunsberger Feld 29
51429 Bergisch Gladbach / DE
[N/P]
Former [1994/40]Sternagel, Hans-Günther, Dr., et al
Patentanwälte Dr. Michael Hann Dr. H.-G. Sternagel Sander Aue 30
D-51465 Bergisch Gladbach / DE
Former [1991/16]Sternagel, Hans-Günther, Dr.
Patentanwälte Dr. Michael Hann Dr. H.-G. Sternagel Sander Aue 30
D-51465 Bergisch Gladbach / DE
Application number, filing date90907771.120.04.1990
[1991/16]
WO1990US02169
Priority number, dateUS1989034225224.04.1989         Original published format: US 342252
[1991/16]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO9012774
Date:01.11.1990
Language:EN
[1990/25]
Type: A1 Application with search report 
No.:EP0422203
Date:17.04.1991
Language:EN
The application published by WIPO in one of the EPO official languages on 01.11.1990 takes the place of the publication of the European patent application.
[1991/16]
Type: B1 Patent specification 
No.:EP0422203
Date:02.02.1994
Language:EN
[1994/05]
Search report(s)International search report - published on:US01.11.1990
(Supplementary) European search report - dispatched on:EP06.08.1991
ClassificationIPC:C07C17/10
[1991/16]
CPC:
C07C17/10 (EP,KR,US); Y02P20/582 (EP,US)
C-Set:
C07C17/10, C07C19/01 (EP,US)
Designated contracting statesBE,   CH,   DE,   ES,   FR,   GB,   IT,   LI,   NL [1991/16]
TitleGerman:FLÜSSIG-NAHRUNGS-INJEKTION IN EINEM CHLOROMETHANVERFAHREN[1991/16]
English:LIQUID FEED INJECTION IN A CHLOROMETHANES PROCESS[1991/16]
French:INJECTION D'ALIMENTATION LIQUIDE DANS UN PROCEDE DE PREPARATION DE CHLOROMETHANES[1991/16]
Entry into regional phase17.12.1990National basic fee paid 
17.12.1990Search fee paid 
17.12.1990Designation fee(s) paid 
17.12.1990Examination fee paid 
Examination procedure17.12.1990Examination requested  [1991/16]
05.01.1993Despatch of a communication from the examining division (Time limit: M04)
10.04.1993Reply to a communication from the examining division
28.05.1993Despatch of communication of intention to grant (Approval: Yes)
04.08.1993Communication of intention to grant the patent
20.10.1993Fee for grant paid
20.10.1993Fee for publishing/printing paid
Opposition(s)03.11.1994No opposition filed within time limit [1995/04]
Fees paidRenewal fee
02.03.1992Renewal fee patent year 03
26.02.1993Renewal fee patent year 04
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Cited inInternational search[A]JPS67142927
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