US3381149A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multichannel piezoelectric transducer
Assignee: Bosch Security Systems Inc
•
Filing: 1958-03-13
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Granted: 1968-04-30
•
Expires: 1978-03-13
Abstract
No abstract record available.
Inventors
- 👤 Alpha M Wiggins
- 👤 John F Wood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:11
CPC Classifications
H; H04; H04R; H04R17/00; H04R17/04; H04R17/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
AN ELECTROMECHANICAL TRANSUDCER COMPRISING AN ELONGATED BODY OF ARTIFICIAL PIEZOELECTRIC MATERIAL HAVING A RECTANGULAR CROSS SECTION, SAID BODY HAVING A PLURALITY OF CHANNELS PARALLEL TO THE AXIS OF ELONGATION OF THE BODY AND DISPOSED IN TWO ORTHOGONAL PLANES INTERSECTING THE AXIS OF THE BODY, A COATING OF ELECTRICALLY CONDUCTING MATERIAL DISPOSED ON THE SURFACE OF EACH OF THE CHANNELS, AND TWO PAIRS OF ELECTRODES DISPOSED ON THE SURFACE OF THE BODY, THE ELECTRODES OF EACH PAIR BEING DISPOSED ON OPPOSITE SIDES OF THE AXIS OF THE BODY AND ELECTRICALLY INSULATED FROM EACH OTHER.
Claim 2
Dependent Claim
93 words
AN ELECTROMECHANICAL TRANSUDCER COMPRISING AN ELONGATED BODY OF ARTIFICIAL PIEZOELECTRIC MATERIAL HAVING A RECTANGULAR CROSS SECTION, SAID BODY HAVING A PLURALITY OF CHANNELS PARALLEL TO THE AXIS OF ELONGATION OF THE BODY AND DISPOSED IN TWO ORTHOGONAL PLANES INTERSECTING THE AXIS OF THE BODY, A COATING OF ELECTRICALLY CONDUCTING MATERIAL DISPOSED ON THE SURFACE OF EACH OF THE CHANNELS, AND TWO PAIRS OF ELECTRODES DISPOSED ON THE SURFACE OF THE BODY, THE ELECTRODES OF EACH PAIR BEING DISPOSED ON OPPOSITE SIDES OF THE AXIS OF THE BODY AND ELECTRICALLY INSULATED FROM EACH OTHER.
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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) | 1971-04-30 | 1971-10-30 | 1972-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-30 | 1975-10-30 | 1976-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-30 | 1979-10-30 | 1980-04-30 | $7700.00 | Window Closed / Lapsed |