EP2913474A3
Manufacture of low cost bits by infiltration of metal powders
Abstract
An apparatus and method for manufacturing a downhole tool. The cemented matrix material is formed from a metal powder, a shoulder powder, and a binder material, wherein the metal powder and/or the shoulder powder includes at least one of stainless steel powder, nickel powder, cobalt powder, iron powder, or powders of other suitable metals or alloys, or a combination of such mentioned powders.

Term
Projected expiry 17 February 2035.
- Priority and filed
- Published
- Today
- Projected expiry
1 sheet
Sheet 1
Every citation, both ways
| Document | Relation | Office | Cited during |
|---|---|---|---|
| US2010166592A1 | Cites | United States of America | Search report |
| US2010236834A1 | Cites | United States of America | Search report |
| US2012298425A1 | Cites | United States of America | Search report |
| US4884477A | Cites | United States of America | Search report |
| US5090491A | Cites | United States of America | Search report |
4 members in 3 offices; this record represents the family
Members4
| Document | Office | Kind | |
|---|---|---|---|
| CA2882049A1 | Canada | A1 | |
| US2015240566A1 | United States of America | A1 | |
| EP2913474A2 | European Patent Office (EPO) | A2 | |
| EP2913474A3This record | European Patent Office (EPO) | A3 |
12 legal events, as the office reported them to INPADOC
Over the term
Point at a mark for the eventEvents
| Event | Code | |
|---|---|---|
| Application deemed to be withdrawnWithdrawn18D | 18D | |
| Information on the status of an ep patent application or granted ep patentGrantedSTATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWNSTAA | STAA | |
| Designated contracting statesAK | AK | |
| Request for extension of the european patentAX | AX | |
| Information provided on ipc code assigned before grantRIC1 | RIC1 | |
| Information provided on ipc code assigned before grantRIC1 | RIC1 | |
| Information provided on ipc code assigned before grantRIC1 | RIC1 | |
| Information provided on ipc code assigned before grantRIC1 | RIC1 | |
| Search report despatchedORIGINAL CODE: 0009013PUAL | PUAL | |
| Designated contracting statesAK | AK | |
| Request for extension of the european patentAX | AX | |
| Public reference made under article 153(3) epc to a published international application that has entered the european phaseORIGINAL CODE: 0009012PUAI | PUAI |
Numbers
- Publication
- 2913474
- Application
- 151553682
Titles3
- German
- HERSTELLUNG VON KOSTENGÜNSTIGEN BOHRMEISSELN DURCH INFILTRATION VON METALLPULVERN
- English
- MANUFACTURE OF LOW COST BITS BY INFILTRATION OF METAL POWDERS
- French
- FABRICATION DE TRÉPANS À FAIBLE COÛT PAR INFILTRATION DE POUDRES MÉTALLIQUES
Classification
- CPC, 10
- E21B10/46
- E21B10/00
- C22C32/0052
- C22C33/0292
- C22C1/1036
- B22F3/26
- B22F7/008
- B22F1/09
- B22F1/12
- B22F7/08
- IPC, 5
- E21B10 00
- E21B10 46
- C22C32 00
- C22C33 02
- B22F1 12
Designated states40
- Contracting states, 38
- Albania
- Austria
- Belgium
- Bulgaria
- Switzerland
- Cyprus
- Czechia
- Germany
- Denmark
- Estonia
- Spain
- Finland
- France
- United Kingdom
- Greece
- Croatia
- Hungary
- Ireland
- Iceland
- Italy
- Liechtenstein
- Lithuania
- Luxembourg
- Latvia
and 14 moreShow fewer
- Monaco
- North Macedonia
- Malta
- Netherlands (Kingdom of the)
- Norway
- Poland
- Portugal
- Romania
- Serbia
- Sweden
- Slovenia
- Slovakia
- San Marino
- Türkiye
- Extension states, 2
- Bosnia and Herzegovina
- Montenegro