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Extract from the Register of European Patents

EP About this file: EP0099883

EP0099883 - PROCESS FOR INHIBITING SCALE [Right-click to bookmark this link]
StatusThe application is deemed to be withdrawn
Status updated on  21.08.1985
Database last updated on 31.08.2024
Most recent event   Tooltip07.07.2007Change - inventorpublished on 08.08.2007  [2007/32]
Applicant(s)For all designated states
DEARBORN CHEMICAL COMPANY
300 Genesee Street
Lake Zurich IL 60047 / US
[1984/06]
Inventor(s)01 / KUHN, Vincent R.
822 Rosebud Avenue
Twin Lakes, WI 53181 / US
02 / VENTURA, Ederlyna M.
1220 South Elmhurst Road Apartment 110
Mount Prospect, IL 60056 / US
[1984/06]
Representative(s)Uexküll & Stolberg
Partnerschaft von
Patent- und Rechtsanwälten mbB
Beselerstrasse 4
22607 Hamburg / DE
[N/P]
Former [1984/06]UEXKÜLL & STOLBERG
Patentanwälte Beselerstrasse 4
D-22607 Hamburg / DE
Application number, filing date82900853.129.01.1982
[1984/06]
WO1982US00121
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report
No.:WO8302607
Date:04.08.1983
[1983/18]
Type: A1 Application with search report 
No.:EP0099883
Date:08.02.1984
Language:EN
The application published by WIPO in one of the EPO official languages on 04.08.1983 takes the place of the publication of the European patent application.
[1984/06]
Search report(s)(Supplementary) European search report - dispatched on:EP29.05.1984
ClassificationIPC:C02F5/10
[1984/06]
CPC:
C02F5/12 (EP)
Designated contracting statesFR [1984/06]
TitleGerman:VERFAHREN ZUR VERHINDERUNG VON KESSELSTEIN[1984/06]
English:PROCESS FOR INHIBITING SCALE[1984/06]
French:PROCEDE EMPECHANT LA FORMATION D'INCRUSTATIONS[1984/06]
File destroyed:13.07.1991
Entry into regional phase25.05.1983National basic fee paid 
25.05.1983Search fee paid 
25.05.1983Designation fee(s) paid 
17.01.1984Examination fee paid 
Examination procedure17.01.1984Examination requested  [1984/13]
29.11.1984Despatch of a communication from the examining division (Time limit: M04)
10.04.1985Application deemed to be withdrawn, date of legal effect  [1985/43]
10.05.1985Despatch of communication that the application is deemed to be withdrawn, reason: reply to the communication from the examining division not received in time  [1985/43]
Fees paidRenewal fee
13.01.1984Renewal fee patent year 03
11.01.1985Renewal fee patent year 04
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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   [ ] - No relevant documents have been disclosed
International search[X]US3709815  ;
 [X]US3928196  ;
 [X]US3806367  ;
 [A]US3709816
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.