Patent US3287669A successfully refreshed from Google Patents.
US3287669A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromechanical band filter having bridging capacitor for providing attenuation pole
Assignee: Siemens and Halske AG
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Filing: 1962-09-21
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Granted: 1966-11-22
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Expires: 1982-09-21
Abstract
No abstract record available.
Inventors
- 👤 Poschenrieder Werner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:49
CPC Classifications
H; H03; H03H; H03H9/00; H03H9/46; H03H9/48; H03H9/52
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
AN ELECTROMECHANICAL AND FILTER WITH (2N+1) MECHANICAL RESONATORS (N=1, 2, 3, ... ), COMPRISING MEANS FORMING TWO ELECTRICAL TERMINALS RESPECTIVELY FOR THE FIRST AND FOR THE LAST MECHANICAL RESONATOR, ELECTRICAL RESONANCE CIRCUITS DISPOSED RESPECTIVELY IN THE INPUT LINE AND IN THE OUTPUT LINE OF THE FILTER, AND MEANS FORMING A CAPACITIVE OVERCOUPLING EXTENDING FROM THE FILTER OUTPUT TO THE FILTER INPUT TO FORM AN ATTENUATION POLE LYING IN THE BLOCKING RANGE AT ONE SIDE OF THE PASS BAND OF THE FILTER.
Claim 2
Dependent Claim
81 words
AN ELECTROMECHANICAL AND FILTER WITH (2N+1) MECHANICAL RESONATORS (N=1, 2, 3, ... ), COMPRISING MEANS FORMING TWO ELECTRICAL TERMINALS RESPECTIVELY FOR THE FIRST AND FOR THE LAST MECHANICAL RESONATOR, ELECTRICAL RESONANCE CIRCUITS DISPOSED RESPECTIVELY IN THE INPUT LINE AND IN THE OUTPUT LINE OF THE FILTER, AND MEANS FORMING A CAPACITIVE OVERCOUPLING EXTENDING FROM THE FILTER OUTPUT TO THE FILTER INPUT TO FORM AN ATTENUATION POLE LYING IN THE BLOCKING RANGE AT ONE SIDE OF THE PASS BAND OF THE FILTER.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-21 | 1970-05-23 | 1970-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-21 | 1974-05-23 | 1974-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-21 | 1978-05-23 | 1978-11-22 | $7700.00 | Window Closed / Lapsed |