Global Patent Index - EP 1062672 A2

EP 1062672 A2 2000-12-27 - FERROMAGNETIC PARTICLES

Title (en)

FERROMAGNETIC PARTICLES

Title (de)

MAGNETISCHE TEILCHEN

Title (fr)

PARTICULES FERROMAGNETIQUES

Publication

EP 1062672 A2 (EN)

Application

EP 99909404 A

Priority

  • NL 9900116 W
  • NL 1008528 A

Abstract (en)

[origin: WO9946782A2] The present invention relates to ferromagnetic metal particles comprising a core of a ferromagnetic metal or metal alloy, wherein the surface of the core is covered entirely with a layer of graphitic carbon.

IPC 1-7 (main, further and additional classification)

H01F 1/00; B01J 27/20; B01J 35/06; H01F 1/44

IPC 8 full level (invention and additional information)

B01J 47/00 (2006.01); B01J 21/18 (2006.01); B01J 23/755 (2006.01); B01J 23/89 (2006.01); B01J 35/00 (2006.01); B01J 35/02 (2006.01); B22F 1/02 (2006.01); B22F 9/22 (2006.01); C01B 39/02 (2006.01); D01F 9/127 (2006.01); H01F 1/00 (2006.01); H01F 1/20 (2006.01); H01F 1/44 (2006.01)

CPC (invention and additional information)

B82Y 25/00 (2013.01); B01J 21/18 (2013.01); B01J 35/0033 (2013.01); B22F 1/02 (2013.01); H01F 1/0054 (2013.01); H01F 1/0072 (2013.01); H01F 1/442 (2013.01); B22F 2998/00 (2013.01); C22C 2026/002 (2013.01)

Combination set (CPC)

B22F 2998/00 + B22F 1/0014 + B22F 9/22

Citation (search report)

See references of WO 9946782A3

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU NL PT SE

EPO simple patent family

WO 9946782 A2 19990916; WO 9946782 A3 19991021; AU 2861099 A 19990927; EP 1062672 A2 20001227; JP 2002507055 A 20020305; NL 1008528 C2 19990910; ZA 9901800 B 19991004

INPADOC legal status


2004-01-21 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20030923

2002-04-24 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20020307

2000-12-27 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20001009

2000-12-27 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A2

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU NL PT SE

2000-12-27 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Free text: RO PAYMENT 20001009