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Current content: 156 511 693 patent documents

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200 241 new documents added

1 026 356 documents amended

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EP 1408577 A1 20040414 - Band-pass filter

Title (en)

Band-pass filter

Title (de)

Bandpassfilter

Title (fr)

Filtre passe-bande

Publication

EP 1408577 A1 20040414 (EN)

Application

EP 03255937 A 20030923

Priority

JP 2002298099 A 20021010

Abstract (en)

A shielding case (18) covers a triangular microstrip conductor (11) on a substrate (10), such that microstrip conductor (21) on inner side of the case do not touch the conductor (11).

IPC 1-7

H01P 1/203

IPC 8 full level

H01P 1/203 (2006.01); H01P 7/08 (2006.01)

CPC (source: EP)

H01P 1/20381 (2013.01)

Citation (search report)

[A] US 4210881 A 19800701 - RUBIN DAVID [US]
[A] US 6304156 B1 20011016 - ISHIZAKI TOSHIO [JP], et al
[AD] STRASSNER B ET AL: "NEW WIDE-BAND DC-BLOCK CYMBAL BANDPASS FILTER", IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, IEEE INC. NEW YORK, US, vol. 50, no. 5, May 2002 (2002-05-01), pages 1431 - 1432, XP001113444, ISSN: 0018-9480

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

EP 1408577 A1 20040414; JP 2004135102 A 20040430

DOCDB simple family (application)

EP 03255937 A 20030923; JP 2002298099 A 20021010