Absorbent articles with multiple layer absorbent cores
Abstract
Absorbent articles such as disposable diapers, incontinent pads, sanitary napkins and the like that have multiple layer absorbent cores that are suitable for acquiring and containing liquids in an especially effective and efficient manner. The absorbent core comprises multiple layers including a first layer comprising hydrophilic fibrous material and having an acquisition zone of a relatively lower average density than the other portions of the first layer so that it quickly acquires discharged liquids; a liquid handling layer comprising a resilient material that is moisture insensitive so as to rapidly acquire liquid into itself through the acquisition zone and distribute the liquid throughout the liquid handling layer to a storage layer and the first layer; and a storage layer comprising a combination of fibrous material and discrete particles of absorbent gelling material that contains and stores the liquids deposited onto the absorbent core and allows the liquid handling layer to be "drained" of the liquids it has acquired so that the liquid handling layer may have sufficient capacity to acquire and distribute subsequent loadings of liquids.
Term
Term ended
Projected expiry passed 23 May 2009, 17.3 years ago.
- Priority
- Filed
- Published
- Projected expiry
- Today
Every citation, both ways
| Document | Relation | Office | Category | Cited during |
|---|---|---|---|---|
| EP0030342A2 | Cites | European Patent Office (EPO) | A | Search report |
| EP0119919A1 | Cites | European Patent Office (EPO) | A | Search report |
| EP0254476A2 | Cites | European Patent Office (EPO) | XD | Search report |
| EP0316771A2 | Cites | European Patent Office (EPO) | XE | Search report |
| GB2124907A | Cites | United Kingdom | X | Search report |
| US4102340A | Cites | United States of America | A | Search report |
12 members in 7 offices
Priority claims3
| Document | Office | Kind | Date |
|---|---|---|---|
| 198032 | United States of America | – | |
| 19803288 | United States of America | A | |
| US19880198032 | – | – | – |
Members12
| Document | Office | Kind | |
|---|---|---|---|
| EP0343941A2 | European Patent Office (EPO) | A2 | |
| JPH0260646A | Japan | A | |
| US4988344A | United States of America | A | |
| EP0343941A3This record | European Patent Office (EPO) | A3 | |
| US5134007A | United States of America | A | |
| EP0343941B1 | European Patent Office (EPO) | B1 | |
| AT103794T | Austria | T | |
| CA1328952C | Canada | C | |
| DE68914327D1 | Germany | D1 | |
| ES2050798T3 | Spain | T3 | |
| DE68914327T2 | Germany | T2 | |
| JP2907867B2 | Japan | B2 |
60 legal events, as 5 offices reported them to INPADOC
Over the term
Point at a mark for the eventEvents
| Event | Code | Office | |
|---|---|---|---|
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Patent expired after termination of 20 yearsExpiredPE20 | PE20 | GB | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| Appeal reference modifiedAppealORIGINAL CODE: EPIDOSCREFNOAPAH | APAH | EP | |
| Announcement of lapse in spainLapsedFD2A | FD2A | ES | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Nl: lapsed or anulled due to non-payment of the annual feeLapsedNLV4 | NLV4 | EP | |
| Patent ceasedCeasedPL | PL | CH | |
| Se: european patent has lapsedLapsedEUG | EUG | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Be: lapsedLapsedBERE | BERE | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| European patent in force as of 2002-01-01IF02 | IF02 | GB | |
| Nl: decision of oppositionOppositionNLR2 | NLR2 | EP | |
| Opposition rejectedOpposition27O | 27O | EP | |
| Opposition rejectedOppositionORIGINAL CODE: 0009273PLBN | PLBN | EP | |
| Information on the status of an ep patent application or granted ep patentGrantedSTATUS: OPPOSITION REJECTEDSTAA | STAA | EP | |
| Appeal dossier modifiedAppealORIGINAL CODE: EPIDOS NOAPOAPAC | APAC | EP | |
| Appeal reference modifiedAppealORIGINAL CODE: EPIDOS REFNOAPAE | APAE | EP | |
| Appeal reference modifiedAppealORIGINAL CODE: EPIDOS REFNOAPAE | APAE | EP | |
| Appeal dossier modifiedAppealORIGINAL CODE: EPIDOS NOAPOAPAC | APAC | EP | |
| Opposition rejectedOppositionORIGINAL CODE: EPIDOS REJOPLBO | PLBO | EP | |
| Nl: opposition has been filed with the epoOppositionNLR1 | NLR1 | EP | |
| Opposition filedOpposition26 | 26 | EP | |
| Se: european patent in force in swedenEAL | EAL | EP | |
| Opposition filedOppositionORIGINAL CODE: 0009260PLBI | PLBI | EP | |
| Lu: last paid annual feeEPTA | EPTA | EP | |
| Validation in greece3011352FG4A | FG4A | GR | |
| Fr: translation filedET | ET | EP | |
| Definitive protectionFG2A | FG2A | ES | |
| It: translation for a ep patent filedITF | ITF | EP | |
| It: translation for a ep patent filedITF | ITF | EP | |
| Corresponds to:REF | REF | EP | |
| Designated contracting statesAK | AK | EP | |
| Corresponds to:REF | REF | EP | |
| (expected) grantORIGINAL CODE: 0009210GRAA | GRAA | EP | |
| First examination report despatched17Q | 17Q | EP | |
| Request for examination filed17P | 17P | EP | |
| Main classification (correction)RHK1 | RHK1 | EP | |
| Designated contracting statesAK | AK | EP | |
| Search report despatchedORIGINAL CODE: 0009013PUAL | PUAL | EP | |
| Designated contracting statesAK | AK | EP | |
| Public reference made under article 153(3) epc to a published international application that has entered the european phaseORIGINAL CODE: 0009012PUAI | PUAI | EP |
Numbers
- Publication
- 0343941
- Publication, DOCDB
- 0343941
- Publication, EPODOC
- EP0343941
- Application
- 305224
- Application, DOCDB
- 89305224
- Application, EPODOC
- EP19890305224
Titles3
- English
- ABSORBENT ARTICLES WITH MULTIPLE LAYER ABSORBENT CORES
- German
- Mehrschichtige absorbierende Kerne aufweisende Gegenstände
- French
- Articles absorbants avec noyaux absorbants à couches multiples
Classification
- CPC, 18
- A61F13/53747
- A61F13/511
- A61F13/535
- A61F13/53717
- A61F13/62
- A61F2013/15406
- A61F2013/15422
- A61F2013/49031
- A61F2013/49076
- A61F2013/51066
- A61F2013/51411
- A61F2013/5149
- A61F2013/530445
- A61F2013/530905
- A61F2013/53721
- A61F2013/53782
- A61F2013/53795
- A61F2013/5666
- IPC, 6
- A61F13 53
- A61F5 44
- A61F13 00
- A61F13 15
- A61F13 49
- A61F13 56
Designated states1
- Contracting states, 1
- Sweden