EP1353045A3

Poppet valve

Abstract

A poppet valve that comprises a valve head and a valve stem is used in an internal combustion engine. The valve head is covered with a heat-insulating film except a valve face. The film is made of ceramics. Furthermore, a heat-shielding plate is fixed over a front face of the valve head to form a heat-insulating space between the plate and the front face thereby decreasing operational temperature of the valve.

EP1353045A3, drawing sheet 1 — Sheet 1 of 1

Term

Term ended

Projected expiry passed 3 April 2023, 3.5 years ago.

1 sheet

Sheet 1

Every citation, both ways

Citations
Document	Relation	Office	Category	Cited during	Relevant claims
DE3150708A1	Cites	Germany	XA	Search report	1
US4530322A	Cites	United States of America	Y	Search report	5,6
US5543029A	Cites	United States of America	XY	Search report	1,4
GB618607A	Cites	United Kingdom	A	Search report	1
CH658101A5	Cites	Switzerland	XA	Search report	1,2

5 members in 4 offices

This recordMember, by publication datePriority claim

Priority claims5

Priority claims
Document	Office	Kind	Date
2002109861	Japan	A	2002-04-12
2002109861	Japan	A	2002-04-12
2002109861	Japan	–	2002-04-12
2002109861	–	–	–
JP20020109861	–	–	–

Members5

Family members, oldest first
Document	Office	Kind
EP1353045A2	European Patent Office (EPO)	A2	2003-10-15
KR20030081165A	Republic of Korea	A	2003-10-17
CN1451850A	China	A	2003-10-29
JP2003307105A	Japan	A	2003-10-31
EP1353045A3This record	European Patent Office (EPO)	A3	2004-03-10

10 legal events, as 2 offices reported them to INPADOC

Over the term

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Events

Legal events, newest first
	Event	Code	Office
2005-06-22	Application deemed to be withdrawnWithdrawn18D	18D	EP
2005-05-06	Information on the status of an ep patent application or granted ep patentGrantedSTATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWNSTAA	STAA	EP
2005-01-05	Designated country de not longer valid8566	8566	DE
2004-12-01	Designation fees paidAKX	AKX	EP
2004-03-10	Designated contracting statesAK	AK	EP
2004-03-10	Request for extension of the european patentAX	AX	EP
2004-01-24	Search report despatchedORIGINAL CODE: 0009013PUAL	PUAL	EP
2003-10-15	Designated contracting statesAK	AK	EP
2003-10-15	Request for extension of the european patentAX	AX	EP
2003-08-29	Public reference made under article 153(3) epc to a published international application that has entered the european phaseORIGINAL CODE: 0009012PUAI	PUAI	EP