EP1547330A4

Ciphering key management and distribution in mbms

Abstract

This record has no abstract on file.

EP1547330A4, drawing sheet 1 — Sheet 1 of 17

Term

Term ended

Projected expiry passed 30 September 2023, 3 years ago.

17 sheets

Sheet 1
Sheet 2
Sheet 3
Sheet 4
Sheet 5
Sheet 6
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Sheet 16
Sheet 17

Every citation, both ways

Citations
Document	Relation	Office	Category	Cited during	Relevant claims
WO0225861A1	Cites	World Intellectual Property Organization (WIPO)	XI	Search report	1,2,4,6-8
US5748736A	Cites	United States of America	A	Search report	1-12
SCHEIKL O ET AL: "Multi-level secure multicast: the rethinking of secure locks", PARALLEL PROCESSING WORKSHOPS, 2002. PROCEEDINGS. INTERNATIONAL CONFER ENCE ON 18-21 AUGUST 2002, PISCATAWAY, NJ, USA,IEEE, 18 August 2002 (2002-08-18), pages 17 - 24, XP010608426, ISBN: 978-0-7695-1680-6	Non-patent	–	–	Search report	–
CHUNG KEI WONG ET AL: "Secure Group Communications Using Key Graphs", IEEE / ACM TRANSACTIONS ON NETWORKING, IEEE / ACM, NEW YORK, NY, US, vol. 8, no. 1, 1 February 2000 (2000-02-01), pages 16 - 30, XP011038845, ISSN: 1063-6692	Non-patent	–	–	Search report	–
"3rd Generation Partnerhip Project; Technical Specification Group Services and System Aspects; Multimedia Broadcast/Multicast Service; Architecture and Functional Description (Release 6)", 3GPP TR 23.846 2.0.0 (2002-09), 24 September 2002 (2002-09-24), pages 1 - 114, XP002258084	Non-patent	–	–	Search report	–
See also references of WO 2004030294A1	Non-patent	–	–	Search report	–

6 members in 5 offices

This recordMember, by publication datePriority claim

Priority claims3

Priority claims
Document	Office	Kind	Date
02144083	China	–	2002-09-30
02144083	China	A	2002-09-30
0302001	Republic of Korea	W	2003-09-30

Members6

Family members, oldest first
Document	Office	Kind
CN1487750A	China	A	2004-04-07
WO2004030294A1	World Intellectual Property Organization (WIPO)	A1	2004-04-08
KR20050061500A	Republic of Korea	A	2005-06-22
EP1547330A1	European Patent Office (EPO)	A1	2005-06-29
US2006140411A1	United States of America	A1	2006-06-29
EP1547330A4This record	European Patent Office (EPO)	A4	2011-07-27

7 legal events, as the office reported them to INPADOC

Over the term

Point at a mark for the event

Events

Legal events, newest first
	Event	Code
2011-08-31	Application withdrawnWithdrawn18W	18W
2011-07-29	Information on the status of an ep patent application or granted ep patentGrantedSTATUS: THE APPLICATION HAS BEEN WITHDRAWNSTAA	STAA
2011-07-27	Supplementary search report drawn up and despatchedA4	A4
2006-01-18	Designated contracting states (corrected)RBV	RBV
2005-06-29	Request for examination filed17P	17P
2005-06-29	Designated contracting statesAK	AK
2005-05-13	Public reference made under article 153(3) epc to a published international application that has entered the european phaseORIGINAL CODE: 0009012PUAI	PUAI