US2708244A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piezoelectric transducers using lead titanate and lead zirconate
Assignee: Individual
•
Filing: 1954-03-24
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Granted: 1955-05-10
•
Expires: 1974-03-24
Abstract
No abstract record available.
Inventors
- 👤 Jaffe Bernard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:57
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/50; C04B35/01; C04B35/46; C04B35/48; C04B35/51; H; H10; H10N; H10N30/00; H10N30/80; H10N30/85; H10N30/853
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
52 words
A PIEZOELECTRIC TRANSDUCER COMPRISING, IN COMBINATION: A PAIR OF ELECTRODES; AND, INTERPOSED BETWEEN SAID ELECTRODES, A CERAMIC ELEMENT CONSISTING OF A SOILD SOLUTION OF LEAD TITANATE AND LEAD ZIRCONATE, THE PROPORTION OF LEAD TITANATE IN SAID SOLUTION BEING WITHIN THE RANGE 10 TO 95 MOLE PERCENT AND THE REMAINDER BEING LEAD ZIRCONATE.
Claim 2
Dependent Claim
52 words
A PIEZOELECTRIC TRANSDUCER COMPRISING, IN COMBINATION: A PAIR OF ELECTRODES; AND, INTERPOSED BETWEEN SAID ELECTRODES, A CERAMIC ELEMENT CONSISTING OF A SOILD SOLUTION OF LEAD TITANATE AND LEAD ZIRCONATE, THE PROPORTION OF LEAD TITANATE IN SAID SOLUTION BEING WITHIN THE RANGE 10 TO 95 MOLE PERCENT AND THE REMAINDER BEING LEAD ZIRCONATE.
References Cited (Backward Citations)
US2541833A
Cited
US2402517A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-05-09 | 1958-11-08 | 1959-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-05-09 | 1962-11-08 | 1963-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-05-09 | 1966-11-08 | 1967-05-10 | $7700.00 | Window Closed / Lapsed |