(19)
(11) EP 1 402 934 B8

(12) CORRECTED EUROPEAN PATENT SPECIFICATION
Note: Bibliography reflects the latest situation

(15) Correction information:
Corrected version no 1 (W1 B1)

(48) Corrigendum issued on:
10.10.2007 Bulletin 2007/41

(45) Mention of the grant of the patent:
30.05.2007 Bulletin 2007/22

(21) Application number: 03026835.3

(22) Date of filing: 26.01.1998
(51) International Patent Classification (IPC): 
B01D 39/16(2006.01)
 B01D 39/08(2006.01)

(54)

Electret articles and filters with increased oily mist resistance

Elektretartikel und Filter mit erhöhter Beständigkeit gegen ölhaltigen Nebel

Articles et filtres en électret avec résistance augmentée à un brouillard huileux

(84) Designated Contracting States:
DE FR GB

(30) Priority: 01.10.1997 US 941270

(43) Date of publication of application:
31.03.2004 Bulletin 2004/14

(62) Application number of the earlier application in accordance with Art. 76 EPC:
98904680.0 / 1019173

(73) Proprietor: MINNESOTA MINING AND MANUFACTURING COMPANY
St. Paul, Minnesota 55133-3427 (US)

(72) Inventors:
  • Rousseau, Alan D.
    Saint Paul, Minnesota 55133-3427 (US)
  • Jones, Marvin E.
    Saint Paul, Minnesota 55133-3427 (US)
  • Mei, Betty Z.
    Saint Paul, Minnesota 55133-3427 (US)

(74) Representative: Vossius & Partner 
Siebertstrasse 4
81675 München
81675 München (DE)


(56) References cited: : 
EP-A- 0 447 166
US-A- 5 411 576
 EP-A- 0 705 931
US-A- 5 645 627
   
       
    Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention).