US3105208A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechanical filter
Assignee: Murata Manufacturing Co Ltd
•
Filing: 1958-08-28
•
Granted: 1963-09-24
•
Expires: 1978-08-28
Abstract
No abstract record available.
Inventors
- 👤 Tanaka Tetsuro
- 👤 Miura Shigeru
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:23
CPC Classifications
H; H03; H03H; H03H9/00; H03H9/46; H03H9/48; H03H9/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
AN ELECTROMECHANICAL WAVE FILTER COMPRISING A PLURALITY OF SOLID SPHERICAL RESONATORS, A PLURALITY OF SOLID ROD SECTIONS BETWEEN SAID RESONATORS AND CONNECTING THEM AND EXTENDING PAST THE END OF SAID RESONATORS, AND TWO TRANSDUCERS TO WHICH THE ROD SECTIONS EXTENDING PAST THE END OF THE RESONATORS ARE RESPECTIVELY CONNECTED, THE FREQUENCY OF THE PASSED WAVE BEING ACCORDING TO THE FORMULA
Claim 2
Dependent Claim
60 words
AN ELECTROMECHANICAL WAVE FILTER COMPRISING A PLURALITY OF SOLID SPHERICAL RESONATORS, A PLURALITY OF SOLID ROD SECTIONS BETWEEN SAID RESONATORS AND CONNECTING THEM AND EXTENDING PAST THE END OF SAID RESONATORS, AND TWO TRANSDUCERS TO WHICH THE ROD SECTIONS EXTENDING PAST THE END OF THE RESONATORS ARE RESPECTIVELY CONNECTED, THE FREQUENCY OF THE PASSED WAVE BEING ACCORDING TO THE FORMULA
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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) | 1966-09-23 | 1967-03-25 | 1967-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-23 | 1971-03-25 | 1971-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-23 | 1975-03-25 | 1975-09-24 | $7700.00 | Window Closed / Lapsed |