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Extract from the Register of European Patents

EP About this file: EP0432642

EP0432642 - Reagent composition, methods and kits for quantification of magnesium or calcium and magnesium [Right-click to bookmark this link]
Former [1991/25]A method for quantitation of calcium and magnesium
[1998/25]
StatusNo opposition filed within time limit
Status updated on  23.04.1999
Database last updated on 02.11.2024
Most recent event   Tooltip23.04.1999No opposition filed within time limitpublished on 09.06.1999 [1999/23]
Applicant(s)For all designated states
F. Hoffmann-La Roche AG
Postfach 3255
4002 Basel / CH
[N/P]
Former [1998/25]For all designated states
F. HOFFMANN-LA ROCHE AG
Postfach 3255
4002 Basel / CH
Former [1991/25]For all designated states
F. HOFFMANN-LA ROCHE AG
Postfach 3255
CH-4002 Basel / CH
Inventor(s)01 / Denton, James Bradley
39 Harrison Avenue Apt. 24
Montclair, N.J. 07042 / US
02 / Dixon, Diane Jean
17 Arthur Street
Belleville, N.J. 07109 / US
03 / Kaufman, Richard Allen
744 Joralemon Street
Belleville, N.J. 07109 / US
[1991/25]
Representative(s)Notegen, Eric-André, et al
F.Hoffmann-La Roche AG
Patent Department (PLP)
124 Grenzacherstrasse
4070 Basel / CH
[N/P]
Former [1993/06]Notegen, Eric-André, et al
Grenzacherstrasse 124 Postfach 3255
CH-4002 Basel / CH
Former [1991/25]Kloter, Rudolf
Postfach 3255 Grenzacherstrasse 124
CH-4002 Basel / CH
Application number, filing date90123418.706.12.1990
[1991/25]
Priority number, dateUS1989045138615.12.1989         Original published format: US 451386
[1991/25]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report 
No.:EP0432642
Date:19.06.1991
Language:EN
[1991/25]
Type: B1 Patent specification 
No.:EP0432642
Date:17.06.1998
Language:EN
[1998/25]
Search report(s)(Supplementary) European search report - dispatched on:EP10.04.1991
ClassificationIPC:G01N31/22, G01N33/84
[1991/25]
CPC:
G01N33/84 (EP,US); G01N31/22 (EP,US); Y10T436/25125 (EP,US);
Y10T436/2525 (EP,US)
Designated contracting statesBE,   CH,   DE,   ES,   FR,   GB,   IT,   LI,   NL [1991/25]
TitleGerman:Reagenzzusammensetzung, Verfahren und Kits zur Quantifizierung von Magnesium oder Calcium und Magnesium[1998/25]
English:Reagent composition, methods and kits for quantification of magnesium or calcium and magnesium[1998/25]
French:Composition de réactifs, méthodes et kit pour la quantification du magnésium ou du calcium et du magnésium[1998/25]
Former [1991/25]Verfahren zur Quantifizierung von Calcium und Magnesium
Former [1991/25]A method for quantitation of calcium and magnesium
Former [1991/25]Procédé pour la quantification du calcium et du magnésium
Examination procedure06.12.1990Examination requested  [1991/25]
31.05.1994Despatch of a communication from the examining division (Time limit: M04)
07.10.1994Reply to a communication from the examining division
16.01.1995Despatch of a communication from the examining division (Time limit: M04)
24.05.1995Reply to a communication from the examining division
19.09.1995Despatch of a communication from the examining division (Time limit: M05)
21.02.1996Reply to a communication from the examining division
30.07.1996Despatch of a communication from the examining division (Time limit: M06)
06.02.1997Reply to a communication from the examining division
11.08.1997Despatch of communication of intention to grant (Approval: Yes)
18.12.1997Communication of intention to grant the patent
11.03.1998Fee for grant paid
11.03.1998Fee for publishing/printing paid
Opposition(s)18.03.1999No opposition filed within time limit [1999/23]
Fees paidRenewal fee
18.12.1992Renewal fee patent year 03
16.12.1993Renewal fee patent year 04
16.12.1994Renewal fee patent year 05
22.12.1995Renewal fee patent year 06
23.12.1996Renewal fee patent year 07
18.12.1997Renewal fee patent year 08
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Documents cited:Search[Y]JP1051100  ;
 [Y]JP61108964
 [Y]  - WPIL, FILE SUPPLIER, accession no. 89-104006 [14], Derwent Publications Ltd, London, GB; & JP-A- 1 051 100 (UNITIKA K.K. et al.), & JP1051100 A 00000000
 [Y]  - CHEMICAL ABSTRACTS, vol. 110, no. 2, 9th January 1989, page 663, abstract no. 17819m, Columbus, Ohio, US; Y. YUAN et al.: "Simultaneous spectrophotometric determination of calcium and magnesium with chlorophosphonazo-III by flow-injection analysis", ANAL. CHIM. ACTA 1988, 212(1-2), 291-5
 [Y]  - WPIL, FILE SUPPLIER, accession no. 86-174437 [27], Derwent Publications Ltd, London, GB; & JP-A-61 108 964 (OSAKA SODA K.K.), & JP61108964 A 00000000
 [A]  - CHEMICAL ABSTRACTS, vol. 106, no. 19, 11th May 1987, page 343, abstract no. 152397e, Columbus, Ohio, US; S. MATSUDA et al.: "pH dependency of calcium(II) binding constant with 2,7-bis(4'chloro-2'-phosphonophenylazo)-1,8-dihydroxynapthalene-3,6-disulfonic acid", & BUNSEKI KAGAKU 1987, 36(2), 129-30
 [A]  - CHEMICAL ABSTRACTS, vol. 112, no. 12, 19th March 1990, page 857, abstract no. 111100h, Columbus, Ohio, US; G. YU; "Color reaction of calcium with chlorophosphanazo III and arsenazo III in aqueous-alcohol solution and its application", & YEJIN FENXI 1987, 7(2), 12-15
 [A]  - CHEMICAL ABSTRACTS, vol. 70, no. 18, 5th May 1989, pages 516-517, abstract no. 83938f, Columbus, Ohio, US; A.M. LUKIN et al.: "Chlorophosphonazo III as a reagent for calcium", & ZAVOD. LAB. 1968, 34(12), 1436-7
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.