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Extract from the Register of European Patents

EP About this file: EP0192490

EP0192490 - Time-domain intensity normalization for fiber optic sensing [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  16.04.1992
Database last updated on 23.04.2024
Most recent event   Tooltip12.11.1999Lapse of the patent in a contracting state
New state(s): LU
published on 29.12.1999 [1999/52]
Applicant(s)For all designated states
Eldec Corporation
P.O. Box 100 16700 13th Avenue West Lynnwood
Washington 98037-8503 / US
[N/P]
Former [1987/16]For all designated states
Eldec Corporation
P.O. Box 100 16700 13th Avenue West
Lynnwood Washington 98037-8503 / US
Former [1986/35]For all designated states
Eldec Corporation
P.O. Box 100 16700 13th Avenue West
Lynnwood Washington 98036 / US
Inventor(s)01 / Lindsey, Thomas A.
2350-218th Place S.W.
Brier Washington 98036 / US
02 / Morton, Randall E.
10320-181st N.E.
Redmond Washington 98052 / US
[1986/35]
Representative(s)Arthur, Bryan Edward, et al
Withers & Rogers Goldings House 2 Hays Lane
London SE1 2HW / GB
[N/P]
Former [1986/35]Arthur, Bryan Edward, et al
Withers & Rogers 4 Dyer's Buildings Holborn
London EC1N 2JT / GB
Application number, filing date86301256.321.02.1986
[1986/35]
Priority number, dateUS1985070432422.02.1985         Original published format: US 704324
[1986/35]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0192490
Date:27.08.1986
Language:EN
[1986/35]
Type: A3 Search report 
No.:EP0192490
Date:19.11.1987
Language:EN
[1987/47]
Type: B1 Patent specification 
No.:EP0192490
Date:12.06.1991
Language:EN
[1991/24]
Search report(s)(Supplementary) European search report - dispatched on:EP28.09.1987
ClassificationIPC:G01D5/26
[1986/35]
CPC:
G01D5/35303 (EP,US)
Designated contracting statesAT,   BE,   CH,   DE,   FR,   GB,   IT,   LI,   LU,   NL,   SE [1986/35]
TitleGerman:Zeitfeld-Intensitätsnormalisierung für Lichtfaserdetektor[1986/35]
English:Time-domain intensity normalization for fiber optic sensing[1986/35]
French:Normalisation de l'intensité en domaine de temps pour la détection de fibres optiques[1986/35]
Examination procedure12.05.1988Examination requested  [1988/28]
02.08.1989Despatch of a communication from the examining division (Time limit: M04)
02.12.1989Reply to a communication from the examining division
23.03.1990Despatch of a communication from the examining division (Time limit: M04)
20.07.1990Reply to a communication from the examining division
24.10.1990Despatch of communication of intention to grant (Approval: No)
26.11.1990Despatch of communication of intention to grant (Approval: later approval)
03.12.1990Communication of intention to grant the patent
04.03.1991Fee for grant paid
04.03.1991Fee for publishing/printing paid
Opposition(s)13.03.1992No opposition filed within time limit [1992/23]
Fees paidRenewal fee
04.02.1988Renewal fee patent year 03
06.02.1989Renewal fee patent year 04
23.02.1990Renewal fee patent year 05
19.02.1991Renewal fee patent year 06
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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  TooltipAT12.06.1991
BE12.06.1991
CH12.06.1991
LI12.06.1991
NL12.06.1991
SE12.06.1991
LU29.02.1992
[1999/52]
Former [1992/18]AT12.06.1991
BE12.06.1991
CH12.06.1991
LI12.06.1991
NL12.06.1991
SE12.06.1991
Former [1992/15]AT12.06.1991
CH12.06.1991
LI12.06.1991
NL12.06.1991
SE12.06.1991
Former [1992/06]CH12.06.1991
LI12.06.1991
NL12.06.1991
SE12.06.1991
Former [1992/05]NL12.06.1991
SE12.06.1991
Former [1992/03]SE12.06.1991
Documents cited:Search[Y]US4182935  (CHOWN MARTIN [GB]);
 [A]EP0021199  (TOKYO SHIBAURA ELECTRIC CO [JP]);
 [A]EP0034107  (UNITED TECHNOLOGIES CORP [US]);
 [A]US4294513  (NELSON DAVID E, et al);
 [A]US4313192  (NELSON DAVID E, et al);
 [A]US4375680  (CAHILL RICHARD F, et al);
 [A]US4430572  (EVE MICHEL [FR], et al);
 [A]US4432599  (MCMAHON DONALD H [US])
 [Y]  - RADIO AND ELECTRONIC ENGINEER, vol. 52, no. 6, June 1982, pages 283-290, Institution of Electronic and Radio Engineers, London, GB; B. CULSHAW: "Optical fibre transducers"
 [Y]  - JOURNAL OF PHYSICS E. SCIENTIFIC INSTRUMENTS, vol. 16, no. 10, October 1983, pages 978-986, Dorking, GB; B. CULSHAW: "Optical systems and sensors for measurement and control"
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.