Abrasive sheeting having individually positioned abrasive granules
Abstract
Abrasive sheeting can produce fine finishes at surprisingly high cutting rates when its abrasive granules are individually positioned in a predetermined pattern, with an uncoated portion of virtually every granule protruding from the surface of the binder layer. Each of the abrasive granules preferably is a spherical composite of a large number of abrasive grains in a binder. For example, abrasive grains having a mean dimension of about 4 µm can be bonded together to form spherical abrasive granules of virtually identical diameters, preferably within a range of from 25 to 100 µm.

Term
Term ended
Projected expiry passed 22 February 2009, 17.6 years ago.
- Priority
- Filed
- Published
- Projected expiry
- Today
1 sheet
Sheet 1
Every citation, both ways
| Document | Relation | Office | Category | Cited during |
|---|---|---|---|---|
| EP0004454A2 | Cites | European Patent Office (EPO) | A | Search report |
| DE2125942A1 | Cites | Germany | A | Search report |
| DE2918103A1 | Cites | Germany | A | Search report |
| DE2951067A1 | Cites | Germany | A | Search report |
11 members in 8 offices
Priority claims3
| Document | Office | Kind | Date |
|---|---|---|---|
| 160776 | United States of America | – | |
| 16077688 | United States of America | A | |
| US19880160776 | – | – | – |
Members11
| Document | Office | Kind | |
|---|---|---|---|
| EP0331344A2 | European Patent Office (EPO) | A2 | |
| KR890012753A | Republic of Korea | A | |
| JPH01289672A | Japan | A | |
| US4930266A | United States of America | A | |
| EP0331344A3This record | European Patent Office (EPO) | A3 | |
| CA1298980C | Canada | C | |
| MX170478B | Mexico | B | |
| EP0331344B1 | European Patent Office (EPO) | B1 | |
| AT94796T | Austria | T | |
| DE68909273D1 | Germany | D1 | |
| DE68909273T2 | Germany | T2 |
31 legal events, as 3 offices reported them to INPADOC
Over the term
Point at a mark for the eventEvents
| Event | Code | Office | |
|---|---|---|---|
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Notification of lapseLapsedST | ST | FR | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Gb: european patent ceased through non-payment of renewal feeCeasedGBPC | GBPC | 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 | |
| Patent ceasedCeasedPL | PL | CH | |
| 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 | |
| No opposition filedOpposition26N | 26N | EP | |
| No opposition filed within time limitOppositionORIGINAL CODE: 0009261PLBE | PLBE | EP | |
| Information on the status of an ep patent application or granted ep patentGrantedSTATUS: NO OPPOSITION FILED WITHIN TIME LIMITSTAA | STAA | EP | |
| Fr: translation filedET | ET | EP | |
| Corresponds to:REF | REF | EP | |
| Designated contracting statesAK | AK | EP | |
| Corresponds to:REF | REF | EP | |
| (expected) grantORIGINAL CODE: 0009210GRAA | GRAA | EP | |
| It: translation for a ep patent filedITF | ITF | EP | |
| It: translation for a ep patent filedITF | ITF | EP | |
| First examination report despatched17Q | 17Q | EP | |
| Designated contracting statesAK | AK | EP | |
| Search report despatchedORIGINAL CODE: 0009013PUAL | PUAL | EP | |
| Request for examination filed17P | 17P | 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
- 0331344
- Publication, DOCDB
- 0331344
- Publication, EPODOC
- EP0331344
- Application
- 301732
- Application, DOCDB
- 89301732
- Application, EPODOC
- EP19890301732
Titles3
- English
- ABRASIVE SHEETING HAVING INDIVIDUALLY POSITIONED ABRASIVE GRANULES
- German
- Schleiffolie mit individuell angebrachten Schleifkörnchen
- French
- Feuille abrasive ayant des grains abrasifs positionnés individuellement
Classification
- CPC, 1
- B24D11/001
- IPC, 1
- B24D11 00
Designated states1
- Contracting states, 1
- Liechtenstein