EP3625902A4

Systems and methods for optical signal-to-noise ratio monitoring

Abstract

This record has no abstract on file.

EP3625902A4, drawing sheet 1 — Sheet 1 of 13

Term

Projected expiry 28 July 2038.

13 sheets

Sheet 1
Sheet 2
Sheet 3
Sheet 4
Sheet 5
Sheet 6
Sheet 7
Sheet 8
Sheet 9
Sheet 10
Sheet 11
Sheet 12
Sheet 13

Every citation, both ways

Citations
Document	Relation	Office	Cited during
WO2016078446A1	Cites	World Intellectual Property Organization (WIPO)	Search report
US5654816A	Cites	United States of America	Search report
SEIJI OKAMOTO ET AL: "Field trial of distance-adaptive optical transmission with digital in-band OSNR estimation", OPTICS EXPRESS, vol. 24, no. 20, 19 September 2016 (2016-09-19), pages 22403, XP055687017, DOI: 10.1364/OE.24.022403	Non-patent	–	Search report
DOU LIANG ET AL: "Differential pilots aided in-band OSNR monitor with large nonlinear tolerance", 2015 OPTICAL FIBER COMMUNICATIONS CONFERENCE AND EXHIBITION (OFC), OSA, 22 March 2015 (2015-03-22), pages 1 - 3, XP032784507, DOI: 10.1364/OFC.2015.W4D.3	Non-patent	–	Search report
See also references of WO 2019024830A1	Non-patent	–	Search report

7 members in 4 offices

This recordMember, by publication datePriority claim

Priority claims9

Priority claims
Document	Office	Kind	Date
201715665351	United States of America	A	2017-07-31
201715665351	United States of America	A	2017-07-31
201715665351	United States of America	–	2017-07-31
2018097688	China	W	2018-07-28
2018097688	China	W	2018-07-28
201715665351	–	–	–
CN2018097688	–	–	–
US201715665351	–	–	–
WO2018CN97688	–	–	–

Members7

Family members, oldest first
Document	Office	Kind
US2019036600A1	United States of America	A1	2019-01-31
WO2019024830A1	World Intellectual Property Organization (WIPO)	A1	2019-02-07
US10256901B2	United States of America	B2	2019-04-09
CN110720182A	China	A	2020-01-21
EP3625902A1	European Patent Office (EPO)	A1	2020-03-25
EP3625902A4This record	European Patent Office (EPO)	A4	2020-05-27
CN110720182B	China	B	2021-02-09

18 legal events, as the office reported them to INPADOC

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Events

Legal events, newest first
	Event	Code
2025-11-26	Application deemed to be withdrawnWithdrawn18D	18D
2025-10-24	Information on the status of an ep patent application or granted ep patentGrantedSTATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWNSTAA	STAA
2025-03-19	Intention to grant announcedINTG	INTG
2025-02-13	Despatch of communication of intention to grant a patentORIGINAL CODE: EPIDOSNIGR1GRAP	GRAP
2025-02-13	Information on the status of an ep patent application or granted ep patentGrantedSTATUS: GRANT OF PATENT IS INTENDEDSTAA	STAA
2022-01-12	First examination report despatched17Q	17Q
2021-12-10	Information on the status of an ep patent application or granted ep patentGrantedSTATUS: EXAMINATION IS IN PROGRESSSTAA	STAA
2020-11-04	Request for validation of the european patent (deleted)DAV	DAV
2020-11-04	Request for extension of the european patent (deleted)DAX	DAX
2020-05-27	Supplementary search report drawn up and despatchedA4	A4
2020-05-27	Information provided on ipc code assigned before grantRIC1	RIC1
2020-05-27	Information provided on ipc code assigned before grantRIC1	RIC1
2020-03-25	Request for examination filed17P	17P
2020-03-25	Designated contracting statesAK	AK
2020-03-25	Request for extension of the european patentAX	AX
2020-02-21	Public reference made under article 153(3) epc to a published international application that has entered the european phaseORIGINAL CODE: 0009012PUAI	PUAI
2020-02-21	Information on the status of an ep patent application or granted ep patentGrantedSTATUS: REQUEST FOR EXAMINATION WAS MADESTAA	STAA
2019-02-09	Information on the status of an ep patent application or granted ep patentGrantedSTATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADESTAA	STAA