Nova Patents
AT440666T

Air cleaning device

Abstract

A particle precipitation device for removing particles entrained in a gas stream comprises an array (200) of passages (11), through which the gas stream can pass relatively freely, the passage being enclosed by plastics walls having electret properties imparted to the plastics walls after formation of the passages and means for urging the gas stream through the array, whereby particles are collected from the gas stream in the passages.

Term

Term ended

Expired 12 April 2020, 6.5 years ago.

  1. Priority
  2. Filed
  3. Granted
  4. Expired
  5. Today

42 members in 16 offices

This recordMember, by publication datePriority claim6 more offices are in the list below

Priority claims1

Priority claims
DocumentOfficeKindDate
9908099United KingdomA

Members42

Family members, oldest first
DocumentOfficeKind
GB9908099D0United KingdomD0
GB0008954D0United KingdomD0
CA2369637A1CanadaA1
CA2606544A1CanadaA1
WO0061293A1World Intellectual Property Organization (WIPO)A1
AU3979000AAustraliaA
GB2352658AUnited KingdomA
EP1169131A1European Patent Office (EPO)A1
KR20020002425ARepublic of KoreaA
MXPA01010196AMexicoA
CN1347344AChinaA
JP2002540935AJapanA
EP1262239A2European Patent Office (EPO)A2
EP1262239A3European Patent Office (EPO)A3
GB2352658BUnited KingdomB
US6749669B1United States of AmericaB1
US2004226448A1United States of AmericaA1
AU780343B2AustraliaB2
EP1527818A1European Patent Office (EPO)A1
EP1169131B1European Patent Office (EPO)B1
AT298269TAustriaT
ATE298269T1AustriaT1
DE60020946D1GermanyD1
DK1169131T3DenmarkT3
PT1169131EPortugalE
ES2244425T3SpainT3
US7014688B2United States of AmericaB2
DE60020946T2GermanyT2
KR100734504B1Republic of KoreaB1
CN100357033CChinaC
CA2369637CCanadaC
CN101229529AChinaA
HK1118249A1Hong Kong, ChinaA1
CA2606544CCanadaC
EP1527818B1European Patent Office (EPO)B1
AT440666TThis recordAustriaT
ATE440666T1AustriaT1
DE60042854D1GermanyD1
JP2010099657AJapanA
JP4665079B2JapanB2
CN101229529BChinaB
JP5143815B2JapanB2