Nova Patents
AT134102T

Method and apparatus for performing noise cancelling in headphones

Abstract

This record has no abstract on file.

Term

No projected expiry on record.

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

23 members in 8 offices

This recordMember, by publication datePriority claim

Priority claims1

Priority claims
DocumentOfficeKindDate
55834290United States of AmericaA

Members23

Family members, oldest first
DocumentOfficeKind
CA2022888A1CanadaA1
EP0412902A2European Patent Office (EPO)A2
US5001763AUnited States of AmericaA
JPH03165696AJapanA
CA2047855A1CanadaA1
EP0468610A2European Patent Office (EPO)A2
US5117461AUnited States of AmericaA
EP0412902A3European Patent Office (EPO)A3
US5134659AUnited States of AmericaA
US5138663AUnited States of AmericaA
EP0468610A3European Patent Office (EPO)A3
JPH06121386AJapanA
EP0468610B1European Patent Office (EPO)B1
AT134102TThis recordAustriaT
DE69116948D1GermanyD1
DE69116948T2GermanyT2
EP0412902B1European Patent Office (EPO)B1
AT144066TAustriaT
DE69028823D1GermanyD1
ES2092497T3SpainT3
DK0412902T3DenmarkT3
DE69028823T2GermanyT2
JP3149220B2JapanB2