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Extract from the Register of European Patents

EP About this file: EP0770150

EP0770150 - CORROSION INHIBITOR COMPOSITION FOR STEEL [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  16.02.2001
Database last updated on 17.09.2024
Most recent event   Tooltip16.02.2001No opposition filed within time limitpublished on 04.04.2001 [2001/14]
Applicant(s)For all designated states
E. I. du Pont de Nemours and Company
1007 Market Street
Wilmington, DE 19898 / US
[N/P]
Former [1997/18]For all designated states
E.I. DU PONT DE NEMOURS AND COMPANY
1007 Market Street
Wilmington Delaware 19898 / US
Inventor(s)01 / WYSONG, Ernest Byron
30 Tall Oaks Drive
Hockessin, DE 19707-2041 / US
02 / WINGRAVE, James Allan
202 Fairville Road
Chadds Ford, PA 19317-9401 / US
03 / DOMBCHIK, Steven Arnold
2334 Empire Drive
Wilmington, DE 19810 / US
04 / SQUIRE, Edward Clarkin
2105 Weatherton Drive
Wilmington, DE 19810-2343 / US
[1997/18]
Representative(s)Woodcraft, David Charles
Brookes Batchellor 102-108 Clerkenwell Road
London EC1M 5SA / GB
[N/P]
Former [1997/18]Woodcraft, David Charles
BROOKES & MARTIN High Holborn House 52/54 High Holborn
London, WC1V 6SE / GB
Application number, filing date95921393.530.05.1995
[1997/18]
WO1995US06604
Priority number, dateUS1994025811313.06.1994         Original published format: US 258113
[1997/18]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO9534694
Date:21.12.1995
Language:EN
[1995/54]
Type: A1 Application with search report 
No.:EP0770150
Date:02.05.1997
Language:EN
The application published by WIPO in one of the EPO official languages on 21.12.1995 takes the place of the publication of the European patent application.
[1997/18]
Type: B1 Patent specification 
No.:EP0770150
Date:19.04.2000
Language:EN
[2000/16]
Search report(s)International search report - published on:EP21.12.1995
ClassificationIPC:C23F11/10, C10M173/02
[1997/18]
CPC:
C23F11/10 (EP,US); C10M129/40 (EP,US); C10M129/42 (EP,US);
C10M133/06 (EP,US); C10M135/10 (EP,US); C10M137/04 (EP,US);
C10M137/08 (EP,US); C10M145/36 (EP,US); C10M173/02 (EP,US);
C10M2201/02 (EP,US); C10M2207/123 (EP,US); C10M2207/125 (EP,US);
C10M2207/126 (EP,US); C10M2207/127 (EP,US); C10M2207/129 (EP,US);
C10M2207/22 (EP,US); C10M2207/288 (EP,US); C10M2209/104 (EP,US);
C10M2209/107 (EP,US); C10M2209/108 (EP,US); C10M2215/04 (EP,US);
C10M2215/042 (EP,US); C10M2215/044 (EP,US); C10M2215/26 (EP,US);
C10M2219/044 (EP,US); C10M2223/04 (EP,US); C10M2223/041 (EP,US);
C10M2223/042 (EP,US); C10M2223/043 (EP,US); C10N2030/12 (EP,US);
C10N2040/20 (EP,US); C10N2040/24 (EP,US); C10N2040/241 (EP,US);
C10N2040/242 (EP,US); C10N2040/243 (EP,US); C10N2040/244 (EP,US);
C10N2040/245 (EP,US); C10N2040/246 (EP,US); C10N2040/247 (EP,US);
C10N2050/01 (EP,US) (-)
Designated contracting statesBE,   DE,   FR,   GB,   IT [1997/18]
TitleGerman:KORROSIONSINHIBIERENDE ZUSAMMENSETZUNG FÜR STAHL[1999/02]
English:CORROSION INHIBITOR COMPOSITION FOR STEEL[1997/18]
French:COMPOSITION INHIBANT LA CORROSION DE L'ACIER[1997/18]
Former [1997/18]KORROSIONSINHIBIERENDEZUSAMMENSETZUNG FÜR STAHL
Entry into regional phase18.11.1996National basic fee paid 
18.11.1996Designation fee(s) paid 
18.11.1996Examination fee paid 
Examination procedure18.12.1995Request for preliminary examination filed
International Preliminary Examining Authority: EP
18.11.1996Examination requested  [1997/18]
07.11.1997Despatch of a communication from the examining division (Time limit: M06)
27.02.1998Reply to a communication from the examining division
01.06.1999Despatch of communication of intention to grant (Approval: Yes)
20.09.1999Communication of intention to grant the patent
02.12.1999Fee for grant paid
02.12.1999Fee for publishing/printing paid
Opposition(s)20.01.2001No opposition filed within time limit [2001/14]
Fees paidRenewal fee
18.11.1996Renewal fee patent year 03
22.05.1998Renewal fee patent year 04
15.05.1999Renewal fee patent year 05
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Cited inInternational searchPL150371  [ ] (POLAK);
 [X]GB709733  (BATAAFSCHE PETROLEUM) [X] 1,4,9,12 * page 8, line 43 - page 9, line 38; claims 1,10,12-14,16 *;
 [A]FR2147924  (TEOL);
 [A]US4130524  (BOERWINKLE FRED P, et al);
 [X]DD159434  (SCHREIER ERWIN, et al) [X] 1-4,9-13 * page 6, lines 26-31; example 3 *;
 [A]US4604226  (BARTLETT PHILIP L [US]) [A] 1,9 * table 1 *;
 [A]EP0293820  (AMCHEM PROD [US]);
 [A]EP0340498  (LUBRITALIA SPA [IT]) [A] 1-5,9-13 * claim 2 *;
 [A]GB2234194  (TOYO KOHAN CO LTD [JP]);
 [A]WO9401517  (HENKEL CORP [US])
 [X]  - POLAK, "Corrosion inhibitor", CHEMICAL ABSTRACTS, (19910701), vol. 114, no. 26, Database accession no. 252227h, page 312 [X] 1,9 * abstract *
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.