US3360770A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vibration sensor
Assignee: AT&T Inc
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Filing: 1966-09-26
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Granted: 1967-12-26
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Expires: 1986-09-26
Abstract
No abstract record available.
Inventors
- 👤 Allen N Friedman
- 👤 Donald L White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 03:18
CPC Classifications
B; B06; B06B; B06B1/00; B06B1/02; B06B1/06; B06B1/0603; G; G10; G10K; G10K13/00; H; H03; H03F; H03F13/00; H04; H04R; H04R23/00; H04R23/006
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
IN COMBINATION: A FLEXURAL BIMORPH COMPRISING TWO ABUTTING PIEZOELECTRICAL MEMBERS, DEFINING THEREBETWEEN A PLANAR INTERFACE; MEANS FOR INDUCING A COMPRESSION WAVE WITHIN SAID BIMORPH IN A DIRECTION PARALLEL TO SAID INTERFACE; MEANS FOR BENDING SAID BIMORPH; AND MEANS CONNECTED ACROSS SAID BIMORPH FOR EXTRACTING AN ELECTRICAL SIGNAL THEREFROM.
Claim 2
Dependent Claim
48 words
IN COMBINATION: A FLEXURAL BIMORPH COMPRISING TWO ABUTTING PIEZOELECTRICAL MEMBERS, DEFINING THEREBETWEEN A PLANAR INTERFACE; MEANS FOR INDUCING A COMPRESSION WAVE WITHIN SAID BIMORPH IN A DIRECTION PARALLEL TO SAID INTERFACE; MEANS FOR BENDING SAID BIMORPH; AND MEANS CONNECTED ACROSS SAID BIMORPH FOR EXTRACTING AN ELECTRICAL SIGNAL THEREFROM.
References Cited (Backward Citations)
US1802782A
Cited
US2943279A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-25 | 1971-06-26 | 1971-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-25 | 1975-06-26 | 1975-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-25 | 1979-06-26 | 1979-12-26 | $7700.00 | Window Closed / Lapsed |