Nova Patents
JPS5774530U

Ladder-type piezoelectric filters

Abstract

This record has no abstract on file.

Term

Term ended

Projected expiry passed 22 October 1990, 35.9 years ago.

  1. Priority and filed
  2. Published
  3. Projected expiry
  4. Today

12 members in 6 offices

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Members12

Family members, oldest first
DocumentOfficeKind
FR2492610A1FranceA1
JPS5774530UThis recordJapanU
NL8104665ANetherlands (Kingdom of the)A
GB2087184AUnited KingdomA
DE3140719A1GermanyA1
US4398162AUnited States of AmericaA
GB2087184BUnited KingdomB
FR2492610B1FranceB1
DE3140719C2GermanyC2
JPS639141Y2JapanY2
NL187187BNetherlands (Kingdom of the)B
NL187187CNetherlands (Kingdom of the)C