Patent US3404296A successfully refreshed from Google Patents.
US3404296A
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Transducer having a transition from a ferroelectric state to an antiferroelectric state
Assignee: Clevite Corp
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Filing: 1963-07-16
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Granted: 1968-10-01
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Expires: 1983-07-16
Abstract
No abstract record available.
Inventors
- 👤 Jaffe Hans
- 👤 Don A Berlincourt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:37
CPC Classifications
H; H03; H03H; H03H9/00; H03H9/02; H03H9/125; C; C04; C04B; C04B35/00; C04B35/01; C04B35/48; C04B35/49; C04B35/491; C04B35/493; G; G01; G01L; G01L1/00; G01L1/12; H01; H01G; H01G7/00; H01G7/02; H01G7/025; H01G7/026; H10; H10N; H10N30/00; H10N30/30; H10N30/80; H10N30/85; H10N30/853; C04B2235/00; C04B2235/02; C04B2235/30; C04B2235/32; C04B2235/3201; C04B2235/3224; C04B2235/3227; C04B2235/3231; C04B2235/3251; C04B2235/3255; C04B2235/3284; C04B2235/3293; C04B2235/70; C04B2235/74; C04B2235/76; C04B2235/762; C04B2235/768
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
45 words
AN ELECTROMECHANICAL TRANSDUCER COMPRISING: A PAIR OF ELECTRODES; AND A CERAMIC ELEMENT INTERPOSED BETWEEN SAID ELECTRODES OPERATIVE TO UNDERGO A TRANSITION FROM A POLARIZED FERROELECTRIC STATE TO AN ANTIFERROELECTRIC STATE UPON APPLICATION OF A COMPRESSIVE MECHANICAL STRESS TO GENERATE AN ELECTRICAL OUTPUT ACROSS SAID ELECTRODES.
Claim 2
Dependent Claim
45 words
AN ELECTROMECHANICAL TRANSDUCER COMPRISING: A PAIR OF ELECTRODES; AND A CERAMIC ELEMENT INTERPOSED BETWEEN SAID ELECTRODES OPERATIVE TO UNDERGO A TRANSITION FROM A POLARIZED FERROELECTRIC STATE TO AN ANTIFERROELECTRIC STATE UPON APPLICATION OF A COMPRESSIVE MECHANICAL STRESS TO GENERATE AN ELECTRICAL OUTPUT ACROSS SAID ELECTRODES.
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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) | 1971-10-01 | 1972-04-01 | 1972-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-01 | 1976-04-01 | 1976-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-01 | 1980-04-01 | 1980-10-01 | $7700.00 | Window Closed / Lapsed |