EP0133352A3

A process for manufacturing microcapsules

Abstract

A process for manufacturing microcapsules comprises in situ polymerisation of a urea or melamine formaldehyde polymer precursor material in an aqueous manufacturing vehicle in the presence of one of a range of specified acrylic acid-alkyl acrylate copolymers containing a critical proportion of alkyl acrylate. The resulting capsules may be used in pressure-sensitive copying materials.

Term

Term ended

Projected expiry passed 24 July 2004, 22.2 years ago.

Every citation, both ways

Citations
Document	Relation	Office	Category	Cited during
GB1246031A	Cites	United Kingdom	A	Search report
FR2416727A1	Cites	France	X	Search report
DE2832637A1	Cites	Germany	X	Search report
DE3008658A1	Cites	Germany	X	Search report

19 members in 10 offices

This recordMember, by publication datePriority claim

Priority claims8

Priority claims
Document	Office	Kind	Date
517296	United States of America	–	1983-07-26
51729683	United States of America	A	1983-07-26
619967	United States of America	–	1984-06-12
61996784	United States of America	A	1984-06-12
517296	–	–	–
619967	–	–	–
US19830517296	–	–	–
US19840619967	–	–	–

Members19

Family members, oldest first
Document	Office	Kind
FI842956A0	Finland	A0	1984-07-25
FI842956A	Finland	A	1985-01-27
FI842956L	Finland	L	1985-01-27
AU3121284A	Australia	A	1985-01-31
EP0133352A2	European Patent Office (EPO)	A2	1985-02-20
JPS6068045A	Japan	A	1985-04-18
EP0133352A3This record	European Patent Office (EPO)	A3	1985-04-24
ES534591A0	Spain	A0	1985-08-01
ES8506468A1	Spain	A1	1985-08-01
US4552811A	United States of America	A	1985-11-12
ZA845712B	South Africa	B	1986-03-26
EP0133352B1	European Patent Office (EPO)	B1	1987-05-06
AT26931T	Austria	T	1987-05-15
ATE26931T1	Austria	T1	1987-05-15
CA1222167A	Canada	A	1987-05-26
DE3463453D1	Germany	D1	1987-06-11
FI74218B	Finland	B	1987-09-30
AU567358B2	Australia	B2	1987-11-19
FI74218C	Finland	C	1988-01-11

37 legal events, as 3 offices reported them to INPADOC

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Events

Legal events, newest first
	Event	Code	Office
2004-08-18	Patent expired after termination of 20 yearsExpiredPE20	PE20	GB
2004-07-31	Be: patent expiredExpiredBE20	BE20	EP
2004-07-23	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2003-07-10	Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP	PGFP	EP
2003-06-25	Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP	PGFP	EP
2003-06-12	Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP	PGFP	EP
2003-06-09	Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP	PGFP	EP
2002-01-01	European patent in force as of 2002-01-01IF02	IF02	GB
1995-01-31	Se: european patent has lapsedLapsedEUG	EUG	EP
1993-07-31	It: last paid annual feeITTA	ITTA	EP
1991-03-28	Patent ceasedCeasedPL	PL	CH
1991-03-18	Nl: lapsed or anulled due to non-payment of the annual feeLapsedNLV4	NLV4	EP
1991-02-01	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
1990-07-31	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
1990-07-31	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
1990-07-25	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
1990-07-24	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
1989-07-31	Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP	PGFP	EP
1989-07-28	Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP	PGFP	EP
1989-07-25	Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP	PGFP	EP
1989-06-29	Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP	PGFP	EP
1988-04-27	No opposition filedOpposition26N	26N	EP
1988-03-09	No opposition filed within time limitOppositionORIGINAL CODE: 0009261PLBE	PLBE	EP
1988-03-09	Information on the status of an ep patent application or granted ep patentGrantedSTATUS: NO OPPOSITION FILED WITHIN TIME LIMITSTAA	STAA	EP
1987-07-17	Fr: translation filedET	ET	EP
1987-06-11	Corresponds to:REF	REF	EP
1987-05-07	It: translation for a ep patent filedITF	ITF	EP
1987-05-07	It: translation for a ep patent filedITF	ITF	EP
1987-05-06	Designated contracting statesAK	AK	EP
1987-05-06	Corresponds to:REF	REF	EP
1987-03-21	(expected) grantORIGINAL CODE: 0009210GRAA	GRAA	EP
1986-07-09	First examination report despatched17Q	17Q	EP
1985-04-24	Designated contracting statesAK	AK	EP
1985-02-22	Search report despatchedORIGINAL CODE: 0009013PUAL	PUAL	EP
1985-02-20	Request for examination filed17P	17P	EP
1985-02-20	Designated contracting statesAK	AK	EP
1984-12-22	Public reference made under article 153(3) epc to a published international application that has entered the european phaseORIGINAL CODE: 0009012PUAI	PUAI	EP

A process for manufacturing microcapsules

Abstract

Term

Priority claims8

Members19

Over the term

Events

Numbers

Titles3

Classification

Designated states10