EP0942402A3

System and signalling apparatus for broadcasting an emergency warning

Abstract

A system for broadcasting an emergency warning throughout an area about a site, comprises a transsitter at the site for broadcasting an electromagnetic warning signal within a tunable bandwidth of a standard radio receiver for receiving commercial broadcasts, with the electromagnetic warning signal including commands for controlling the receiver, and a power amplifier within the transmitter whose power rating provides an effective local range of the electromagnetic warning signal about said site, and means for detecting the electromagnetic warning signal within its effective local range and in response thereto tuning the receiver to a carrier frequency of the electromagnetic warning signal.

EP0942402A3, drawing sheet 1 — Sheet 1 of 1

Term

Term ended

Projected expiry passed 31 July 2015, 11.2 years ago.

1 sheet

Sheet 1

Every citation, both ways

Citations
Document	Relation	Office	Category	Cited during	Relevant claims
US3824469A	Cites	United States of America	Y	Search report	1-25
DE3915099A1	Cites	Germany	Y	Search report	1-10,13,15-23
DE4123857A1	Cites	Germany	A	Search report	–
US4241326A	Cites	United States of America	A	Search report	–
US4403208A	Cites	United States of America	Y	Search report	11,12,14,24,25
US5307060A	Cites	United States of America	A	Search report	–
CH664639A5	Cites	Switzerland	A	Search report	–

15 members in 8 offices

This recordMember, by publication datePriority claim

Priority claims7

Priority claims
Document	Office	Kind	Date
286624	United States of America	–	1994-08-05
28662494	United States of America	A	1994-08-05
95928238	European Patent Office (EPO)	A	1995-07-31
286624	–	–	–
95928238	–	–	–
EP19950928238	–	–	–
US19940286624	–	–	–

Members15

Family members, oldest first
Document	Office	Kind
CA2195194A1	Canada	A1	1996-02-15
WO9604632A1	World Intellectual Property Organization (WIPO)	A1	1996-02-15
US5572201A	United States of America	A	1996-11-05
EP0774147A1	European Patent Office (EPO)	A1	1997-05-21
MX9700857A	Mexico	A	1997-06-28
BR9508478A	Brazil	A	1997-08-12
BR9508478A	Brazil	A	1997-08-12
JPH09510311A	Japan	A	1997-10-14
EP0942402A2	European Patent Office (EPO)	A2	1999-09-15
EP0774147B1	European Patent Office (EPO)	B1	1999-11-17
DE69513402D1	Germany	D1	1999-12-23
CA2195194C	Canada	C	2000-04-18
JP3045776B2	Japan	B2	2000-05-29
DE69513402T2	Germany	T2	2000-07-27
EP0942402A3This record	European Patent Office (EPO)	A3	2000-08-23

11 legal events, as the office reported them to INPADOC

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Point at a mark for the event

Events

Legal events, newest first
	Event	Code
2003-08-13	Application deemed to be withdrawnWithdrawn18D	18D
2003-06-28	Information on the status of an ep patent application or granted ep patentGrantedSTATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWNSTAA	STAA
2000-08-23	Designated contracting statesAK	AK
2000-07-07	Search report despatchedORIGINAL CODE: 0009013PUAL	PUAL
1999-12-15	Information on inventor provided before grant (corrected)RIN1	RIN1
1999-12-15	Information on inventor provided before grant (corrected)RIN1	RIN1
1999-12-15	Information on inventor provided before grant (corrected)RIN1	RIN1
1999-09-15	Request for examination filed17P	17P
1999-09-15	Divisional application: reference to earlier applicationAC	AC
1999-09-15	Designated contracting statesAK	AK
1999-07-30	Public reference made under article 153(3) epc to a published international application that has entered the european phaseORIGINAL CODE: 0009012PUAI	PUAI