EP0244504A3

X-ray source

Abstract

An X-ray source comprises a thin film X-ray target (22) for generating X-rays in response to the application of electron beams, and a capillary tubular element (20) for allowing the X-rays to pass. The capillary tubular element (20) has such a diameter that the beams of the X-rays impinging on the inner surfaces of the capillary tubular element (20) are totally reflected. Additionally, a thin film (24) is provided for absorbing the electron beams, but allowing the X-rays to penetrate.

EP0244504A3, drawing sheet 1 — Sheet 1 of 1

Term

Term ended

Projected expiry passed 21 August 2006, 20.1 years ago.

1 sheet

Sheet 1

Every citation, both ways

Citations
Document	Relation	Office	Category	Cited during
US2638554A	Cites	United States of America	X	Search report
US3867637A	Cites	United States of America	A	Search report
US4194123A	Cites	United States of America	Y	Search report

11 members in 5 offices

This recordMember, by publication datePriority claim

Priority claims4

Priority claims
Document	Office	Kind	Date
18547185	Japan	–	1985-08-22
18547185	Japan	A	1985-08-22
18547185	–	–	–
JP19850185471	–	–	–

Members11

Family members, oldest first
Document	Office	Kind
CN86105121A	China	A	1987-02-18
CN86105121A	China	A	1987-02-18
JPS6244940A	Japan	A	1987-02-26
EP0244504A2	European Patent Office (EPO)	A2	1987-11-11
US4780903A	United States of America	A	1988-10-25
EP0244504A3This record	European Patent Office (EPO)	A3	1989-05-10
CN1008671B	China	B	1990-07-04
JPH0373094B2	Japan	B2	1991-11-20
EP0244504B1	European Patent Office (EPO)	B1	1993-10-27
DE3689231D1	Germany	D1	1993-12-02
DE3689231T2	Germany	T2	1994-05-19

22 legal events, as 3 offices reported them to INPADOC

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Events

Legal events, newest first
	Event	Code	Office
2003-04-16	Gb: european patent ceased through non-payment of renewal feeCeasedGBPC	GBPC	EP
2002-08-21	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2002-01-01	European patent in force as of 2002-01-01IF02	IF02	GB
2001-08-15	Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP	PGFP	EP
1999-06-04	Notification of lapseLapsedST	ST	FR
1999-06-01	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
1999-04-30	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
1997-09-01	Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP	PGFP	EP
1997-08-11	Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP	PGFP	EP
1994-10-19	No opposition filedOpposition26N	26N	EP
1994-08-27	No opposition filed within time limitOppositionORIGINAL CODE: 0009261PLBE	PLBE	EP
1994-08-27	Information on the status of an ep patent application or granted ep patentGrantedSTATUS: NO OPPOSITION FILED WITHIN TIME LIMITSTAA	STAA	EP
1994-02-04	Fr: translation filedET	ET	EP
1993-12-02	Corresponds to:REF	REF	EP
1993-10-27	Designated contracting statesAK	AK	EP
1993-09-09	(expected) grantORIGINAL CODE: 0009210GRAA	GRAA	EP
1992-04-01	First examination report despatched17Q	17Q	EP
1989-12-13	Request for examination filed17P	17P	EP
1989-05-10	Designated contracting statesAK	AK	EP
1989-03-21	Search report despatchedORIGINAL CODE: 0009013PUAL	PUAL	EP
1987-11-11	Designated contracting statesAK	AK	EP
1987-09-26	Public reference made under article 153(3) epc to a published international application that has entered the european phaseORIGINAL CODE: 0009012PUAI	PUAI	EP

X-ray source

Abstract

Term

Priority claims4

Members11

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Events

Numbers

Titles3

Classification

Designated states3