US3358249A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Folded h-shaped resonator electromechanical filter
Assignee: Toko Inc
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Filing: 1964-10-23
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Granted: 1967-12-12
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Expires: 1984-10-23
Abstract
No abstract record available.
Inventors
- 👤 Kawakami Masamitsu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:34
CPC Classifications
H; H03; H03H; H03H9/00; H03H9/46; H03H9/48; H03H9/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
A BAND-PASS ELECTROMECHANICAL FILER COMPRISING, IN ASSEMBLED COMBINATION, A RESONATOR SYSTEM CONSISTING OF A PLURALITY OF DOUBLE TUNED RESONATORS OF SIMILAR KIND, EACH OF WHICH IS FORMED FROM A SINGLE PIECE MADE OF ONE KIND OF METAL PLATE IN THE CONFIGURATION OF THE LETTER H HAVING TWO RESONATOR PLATES COUPLED BY A TRANSVERSE COUPLER WHICH IS BENT ASKEW IN A JOGGLED MANNER SO AS TO DISPOSED THE SAID TWO RESONATOR PLATES IN DIFFERENT BUT MUTUALLY PARALLEL PLANES, THE SAID H-SHAPED RESONATORS BEING CASCADE-CONNECTED IN A TIERED ZIGZAG ARRANGEMENT WHEREIN ADJACENT H-SHAPED RESONATORS ARE JOINED BY THE LAMINAR
Claim 2
Dependent Claim
97 words
A BAND-PASS ELECTROMECHANICAL FILER COMPRISING, IN ASSEMBLED COMBINATION, A RESONATOR SYSTEM CONSISTING OF A PLURALITY OF DOUBLE TUNED RESONATORS OF SIMILAR KIND, EACH OF WHICH IS FORMED FROM A SINGLE PIECE MADE OF ONE KIND OF METAL PLATE IN THE CONFIGURATION OF THE LETTER H HAVING TWO RESONATOR PLATES COUPLED BY A TRANSVERSE COUPLER WHICH IS BENT ASKEW IN A JOGGLED MANNER SO AS TO DISPOSED THE SAID TWO RESONATOR PLATES IN DIFFERENT BUT MUTUALLY PARALLEL PLANES, THE SAID H-SHAPED RESONATORS BEING CASCADE-CONNECTED IN A TIERED ZIGZAG ARRANGEMENT WHEREIN ADJACENT H-SHAPED RESONATORS ARE JOINED BY THE LAMINAR
References Cited (Backward Citations)
US2695357A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-11 | 1971-06-12 | 1971-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-11 | 1975-06-12 | 1975-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-11 | 1979-06-12 | 1979-12-12 | $7700.00 | Window Closed / Lapsed |