EP1369718A3

Fiber optic device with enhanced resistance to environmental conditions and method

Abstract

A method for producing fiber optic devices (e.g. couplers, biconical tapers) having improved intrinsic resistance to external environmental conditions and a fiber optic device made by heating and stretching of fibers (402,404). The fabrication method produces an optic device that is treated with deuterium. The method includes a step for treating and/or making optical devices in the presence of a flame (418) produced by the combustion of deuterium gas (416) or a mixture including deuterium.

EP1369718A3, drawing sheet 1 — Sheet 1 of 1

Term

Term ended

Projected expiry passed 3 June 2023, 3.3 years ago.

1 sheet

Sheet 1

Every citation, both ways

Citations
Document	Relation	Office	Category	Cited during	Relevant claims
US4515612A	Cites	United States of America	A	Search report	1-13,16
US4689065A	Cites	United States of America	XY	Search report	1-6,11-20
US4798438A	Cites	United States of America	DY	Search report	7-10

9 members in 5 offices

This recordMember, by publication datePriority claim

Priority claims8

Priority claims
Document	Office	Kind	Date
160165	United States of America	–	2002-06-04
16016502	United States of America	A	2002-06-04
445254	United States of America	–	2003-05-27
44525403	United States of America	A	2003-05-27
160165	–	–	–
445254	–	–	–
US20020160165	–	–	–
US20030445254	–	–	–

Members9

Family members, oldest first
Document	Office	Kind
US2003223693A1	United States of America	A1	2003-12-04
EP1369718A2	European Patent Office (EPO)	A2	2003-12-10
TW200401911A	Taiwan Province of China	A	2004-02-01
US2004033023A1	United States of America	A1	2004-02-19
CN1479123A	China	A	2004-03-03
US6741774B2	United States of America	B2	2004-05-25
JP2004252400A	Japan	A	2004-09-09
EP1369718A3This record	European Patent Office (EPO)	A3	2004-09-15
US6865322B2	United States of America	B2	2005-03-08

13 legal events, as 2 offices reported them to INPADOC

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Events

Legal events, newest first
	Event	Code	Office
2011-01-21	Applications withdrawn, deemed to be withdrawn, or refused after publication in hong kongWithdrawnWD	WD	HK
2008-02-13	Application deemed to be withdrawnWithdrawn18D	18D	EP
2008-01-11	Information on the status of an ep patent application or granted ep patentGrantedSTATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWNSTAA	STAA	EP
2007-05-16	First examination report despatched17Q	17Q	EP
2005-06-01	Designation fees paidAKX	AKX	EP
2005-05-04	Request for examination filed17P	17P	EP
2004-09-15	Designated contracting statesAK	AK	EP
2004-09-15	Request for extension of the european patentAX	AX	EP
2004-07-30	Search report despatchedORIGINAL CODE: 0009013PUAL	PUAL	EP
2004-06-25	Requests to designate patent in hong kongDE	DE	HK
2003-12-10	Designated contracting statesAK	AK	EP
2003-12-10	Request for extension of the european patentAX	AX	EP
2003-10-24	Public reference made under article 153(3) epc to a published international application that has entered the european phaseORIGINAL CODE: 0009012PUAI	PUAI	EP