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Extract from the Register of European Patents

EP About this file: EP0686867

EP0686867 - All fiber in-line optical isolator [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  16.08.2002
Database last updated on 20.07.2024
Most recent event   Tooltip16.08.2002No opposition filed within time limitpublished on 02.10.2002  [2002/40]
Applicant(s)For all designated states
CeramOptec GmbH
Siemensstrasse 8
53121 Bonn / DE
[2001/41]
Former [1995/50]For all designated states
CeramOptec GmbH
Siemenstrasse 8
D-53121 Bonn / DE
Inventor(s)01 / Krivoshlykov, Sergej G.
Altufievskoje Shosse 34-A, Flat 54
Moscow, 127562 / RU
[1995/50]
Application number, filing date95201516.208.06.1995
[1995/50]
Priority number, dateUS1994025734709.06.1994         Original published format: US 257347
[1995/50]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report 
No.:EP0686867
Date:13.12.1995
Language:EN
[1995/50]
Type: B1 Patent specification 
No.:EP0686867
Date:10.10.2001
Language:EN
[2001/41]
Search report(s)(Supplementary) European search report - dispatched on:EP08.08.1995
ClassificationIPC:G02F1/095
[1995/50]
CPC:
G02F1/0118 (EP,US); G02F1/0955 (EP,US)
Designated contracting statesDE,   GB [1995/50]
TitleGerman:Faseroptischer Isolator[1995/50]
English:All fiber in-line optical isolator[1995/50]
French:Isolateur à fibre optique[1995/50]
Examination procedure12.06.1996Examination requested  [1996/32]
11.10.1999Despatch of a communication from the examining division (Time limit: M06)
11.04.2000Reply to a communication from the examining division
21.12.2000Despatch of communication of intention to grant (Approval: No)
21.02.2001Despatch of communication of intention to grant (Approval: later approval)
12.04.2001Communication of intention to grant the patent
05.07.2001Fee for grant paid
05.07.2001Fee for publishing/printing paid
Opposition(s)11.07.2002No opposition filed within time limit [2002/40]
Fees paidRenewal fee
30.06.1997Renewal fee patent year 03
30.06.1998Renewal fee patent year 04
30.06.1999Renewal fee patent year 05
30.06.2000Renewal fee patent year 06
02.07.2001Renewal fee patent year 07
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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[A]US3990777  (AURACHER FRANZ) [A] 1,4 * column 2, line 57 - column 3, line 47 * * figure 3 *;
 [A]EP0296676  (PHILIPS PATENTVERWALTUNG [DE], et al) [A] 1,4 * column 3, line 1 - line 23 * * figure 1 *;
 [A]EP0112223  (THOMSON CSF [FR]) [A] 1,4 * claim 1 *;
 [A]JPH0561002
 [A]  - V. PRIYE AND M. TSUTSUMI, "NONRECIPROCAL BEHAVIOUR OF LEAKY GYROTROPIC WAVEGUIDE", ELECTRONICS LETTERS., STEVENAGE GB, (19930107), vol. 29, no. 1, pages 104 - 105, XP000403941 [A] 1,4,7 * the whole document *
 [AD]  - W. JOHNSTONE ET AL., "FIBRE OPTIC WAVELENGTH CHANNEL SELECTOR WITH HIGH RESOLUTION", ELECTRONICS LETTERS., STEVENAGE GB, (19920702), vol. 28, no. 14, pages 1364 - 1365, XP000319067 [AD] 1,4 * the whole document *
 [A]  - T. SHINTAKU AND T. UNO, "Directional Coupler Type Optical Circulator", TRANSACTIONS OF THE INSTITUTE OF ELECTRONICS AND COMMUNICATION ENGINEERS OF JAPAN, SECTION E, TOKYO JP, (199004), vol. E73, no. 4, pages 474 - 476, XP000132745 [A] 1,4 * the whole document *
 [A]  - PATENT ABSTRACTS OF JAPAN, (19930312), vol. 17, no. 372, Database accession no. (P - 1573), & JP05061002 A 00000000 (MATSUSHITA) [A] 7 * abstract *
by applicantUS4859013
    - LASER FOCAS, (1978), vol. 14, no. 11, page 52
    - J. LIGHTWAVE TECHN., (1984), vol. 27, no. 56
    - ELECTRONICS LETT., (1992), vol. 28, page 1364
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.