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Extract from the Register of European Patents

EP About this file: EP0064789

EP0064789 - Interferometer transmitting the useful phase information through optical fibres [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  14.09.1987
Database last updated on 26.07.2024
Most recent event   Tooltip28.09.2007Lapse of the patent in a contracting state
New state(s): LU
published on 31.10.2007  [2007/44]
Applicant(s)For all designated states
CISE- Centro Informazioni Studi Esperienze S.p.A.
Via Carducci, 14
I-20123 Milano / IT
[1982/46]
Inventor(s)01 / Martinelli, Mario
Via Montaldi, 26
I-46029 Suzzara Mantova / IT
[1982/46]
Representative(s)Faraggiana, Vittorio, et al
Ingg. Guzzi & Ravizza S.r.l.
Via Vincenzo Monti 8
20123 Milano / IT
[N/P]
Former [1982/46]Faraggiana, Vittorio, Dr. Ing., et al
Ingg. Guzzi & Ravizza S.r.l. Via Vincenzo Monti 8
I-20123 Milano / IT
Application number, filing date82200506.229.04.1982
[1982/46]
Priority number, dateIT1981002152906.05.1981         Original published format: IT 2152981
[1982/46]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0064789
Date:17.11.1982
Language:EN
[1982/46]
Type: A3 Search report 
No.:EP0064789
Date:02.05.1984
Language:EN
[1984/18]
Type: B1 Patent specification 
No.:EP0064789
Date:12.11.1986
Language:EN
[1986/46]
Search report(s)(Supplementary) European search report - dispatched on:EP01.03.1984
ClassificationIPC:G01B9/02, G01H9/00, G01J9/02
[1982/46]
CPC:
G01J9/02 (EP,US); G01H9/006 (EP,US); G01J2009/0226 (EP,US)
Designated contracting statesAT,   BE,   CH,   DE,   FR,   GB,   IT,   LI,   LU,   NL,   SE [1982/46]
TitleGerman:Interferometer unter Verwendung von optischen Fasern zur Phaseninformationsübertragung[1982/46]
English:Interferometer transmitting the useful phase information through optical fibres[1982/46]
French:Interféromètre transmettant l'information de phase par des fibres optiques[1982/46]
File destroyed:15.01.2000
Examination procedure21.02.1983Examination requested  [1983/20]
12.08.1985Despatch of a communication from the examining division (Time limit: M06)
13.02.1986Reply to a communication from the examining division
23.04.1986Despatch of communication of intention to grant (Approval: )
16.05.1986Communication of intention to grant the patent
09.07.1986Fee for grant paid
09.07.1986Fee for publishing/printing paid
Opposition(s)13.08.1987No opposition filed within time limit [1987/45]
Fees paidRenewal fee
20.03.1984Renewal fee patent year 03
15.03.1985Renewal fee patent year 04
20.03.1986Renewal fee patent year 05
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Lapses during opposition  TooltipAT12.11.1986
BE12.11.1986
IT12.11.1986
LU30.04.1987
[1999/52]
Former [1999/42]AT12.11.1986
BE12.11.1986
IT12.11.1986
Former [1989/08]AT12.11.1986
BE12.11.1986
Former [1989/03]BE12.11.1986
Documents cited:Search[A]  - OPTICAL AND QUANTUM ELECTRONICS, vol. 10, no. 6, November 1978, pages 533-535 F. PARMIGIANI: "A high sensitivity laser vibration meter using a fibre-optic probe"
 [A]  - OPTICS AND LASER TECHNOLOGY, vol. 10, no. 1, January 1978, Pages 33-36 R.A. COOKSON et al.: "Mechanical vibration measurements using a fibre optic laser-Doppler probe"
 [A]  - REVIEW OF SCIENTIFIC INSTRUMENTS, vol. 49, no. 6, June 1978, pages 722-728 M.A. NOKES et al.: "Fiber optic heterodyne interferometer for vibration measurements in biological systems"
 [A]  - OPTICS LETTERS, vol. 4, no. 5, May 1979, pages 152-154 R. ULRICH et al.: "Fiber-ring interferometer polarization analysis"
 [A]  - APPLIED OPTICS, vol. 20, no. 9, 1st May 1981, pages 1498-1499 S.C. RASHLEIGH: "Fiber-optic sensors with reduced sensitivity to environmental perturbations"
 [A]  - APPLIED OPTICS; vol. 17, no. 12, 15th June 1978, pages 1965-1971 M. IIYAMA et al.: "Optical field mapping using single-mode optical fibers"
 [A]  - OPTICS LETTERS, vol. 5, no. 4, April 1980, pages 139-141 D.A. JACKSON et al.: "Measurement of small phae shifts using a single-mode optical-fiber interferometer"
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.