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Extract from the Register of European Patents

EP About this file: EP0114316

EP0114316 - Test means, test device and method for determining the ionic strength or specific gravity of a liquid sample [Right-click to bookmark this link]
Former [1984/31]Novel quaternary ammonium polyelectrolyte salts, test means, test device and method for determining the ionic strength or specific gravity of a liquid sample
[1987/40]
StatusNo opposition filed within time limit
Status updated on  28.07.1988
Database last updated on 19.07.2024
Most recent event   Tooltip15.12.1988Lapse of the patent in a contracting statepublished on 01.02.1989 [1989/05]
Applicant(s)For all designated states
MILES LABORATORIES, INC.
1127 Myrtle Street Elkhart
Indiana 46514 / US
[N/P]
Former [1984/31]For all designated states
MILES LABORATORIES, INC.
1127 Myrtle Street
Elkhart Indiana 46514 / US
Inventor(s)01 / Wang, Joseph Y.
1501 Locust Street Apt. 207
Elkhart IN 46514 / US
[1984/31]
Representative(s)Dänner, Klaus, et al
Bayer AG Konzernbereich RP Rechtspolitik Gewerblicher Rechtsschutz
51368 Leverkusen / DE
[N/P]
Former [1986/28]Dänner, Klaus, Dr., et al
Bayer AG Konzernverwaltung RP Patente Konzern
D-51368 Leverkusen / DE
Former [1984/31]Senftl, Hannes, Dr.
c/o Bayer AG Konzernverwaltung RP Patentabteilung
D-5090 Leverkusen Bayerwerk / DE
Application number, filing date83112689.116.12.1983
[1984/31]
Priority number, dateUS1982045387427.12.1982         Original published format: US 453874
US1982045329727.12.1982         Original published format: US 453297
[1984/31]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0114316
Date:01.08.1984
Language:EN
[1984/31]
Type: A3 Search report 
No.:EP0114316
Date:26.09.1984
Language:EN
[1984/39]
Type: B1 Patent specification 
No.:EP0114316
Date:30.09.1987
Language:EN
[1987/40]
Search report(s)(Supplementary) European search report - dispatched on:EP25.07.1984
ClassificationIPC:G01N33/493, G01N33/52, G01N9/00
[1987/40]
CPC:
G01N33/52 (EP); G01N9/00 (EP)
Former IPC [1984/35]G01N33/52, G01N9/00
Former IPC [1984/31]G01N33/50, G01N9/00
Designated contracting statesCH,   DE,   FR,   GB,   IT,   LI,   NL,   SE [1984/31]
TitleGerman:Testmittel, Testgerät und Verfahren zur Bestimmung der Ionenstärke oder des spezifischen Gewichtes einer wässrigen Probe[1987/40]
English:Test means, test device and method for determining the ionic strength or specific gravity of a liquid sample[1987/40]
French:Moyen d'examen, appareillage d'examen et méthode de détermination de la force ionique ou du poids spécifique d'un échantillon liquide[1987/40]
Former [1984/31]Quaternäre Ammonium-Polyelektrolyt-Salze, Testmittel, Testgerät und Verfahren zur Bestimmung der Ionenstärke oder des spezifischen Gewichtes einer wässrigen Probe
Former [1984/31]Novel quaternary ammonium polyelectrolyte salts, test means, test device and method for determining the ionic strength or specific gravity of a liquid sample
Former [1984/31]Sels polyélectrolytiques d'ammonium quaternaire, moyen d'examen, appareillage d'examen et méthode de détermination de la force ionique ou du poids spécifique d'un échantillon liquide
Examination procedure16.12.1983Examination requested  [1984/31]
24.01.1986Despatch of a communication from the examining division (Time limit: M04)
19.04.1986Reply to a communication from the examining division
03.12.1986Despatch of communication of intention to grant (Approval: )
01.04.1987Communication of intention to grant the patent
08.04.1987Fee for grant paid
08.04.1987Fee for publishing/printing paid
Opposition(s)01.07.1988No opposition filed within time limit [1988/37]
Fees paidRenewal fee
22.11.1985Renewal fee patent year 03
17.11.1986Renewal fee patent year 04
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Patent Court
See the Register of the Unified Patent Court for opt-out data
Responsibility for the accuracy, completeness or quality of the data displayed under the link provided lies entirely with the Unified Patent Court.
Lapses during opposition  TooltipNL30.09.1987
[1989/05]
Documents cited:Search[YD]US4318709  ;
 [Y]EP0023631
 [X]  - CHEMICAL ABSTRACTS, vol. 84, no. 22, 31st May 1976, page 16, no. 151195c, Columbus, Ohio, USA; E. TSUCHIDA et al.: "Gel formation through interpolymer interaction of poly(methacrylic acid)-poly(vinylbenzyltrimethylammonium chloride" & J. POLYM. SCI., POLYM. CHEM. ED. 1976, 14(3), 76
 [X]  - CHEMICAL ABSTRACTS, vol. 95, no. 18, 2nd November 1981, page 11, no. 151300k, Columbus, Ohio, USA; B. PHILIPP et al.: "Polysalt formation with poly(carboxylic acid)s" & EUR. POLYM. J. 1981, 17(6), 615-618
 [X]  - CHEMICAL ABSTRACTS, vol. 81, no. 23, 9th December 1974, page 24, no. 153025j, Columbus, Ohio, USA; ZH.G. GULYAEVA et al.: "Polyelectrolyte complexes consisting of polymeric quaternary ammonium salts"& VYSOKOMOL. SOEDIN., SER. A 1974, 16(8), 1852-1858
ExaminationUS3325402
 US3429963
 US2984639
 US4320040
    - CHEMICAL ABSTRACTS, vol. 95, no. 22, 30th November 1981, page 12, no. 187841b, Columbus, Ohio, USA;
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.