US3175107A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piezoelectric transducer with longitudinal polarization
Assignee: US Philips Corp
•
Filing: 1962-11-23
•
Granted: 1965-03-23
•
Expires: 1982-11-23
Abstract
No abstract record available.
Inventors
- 👤 Brussaard Jan Maarten
- 👤 Hekkert Jan Willem
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:03
CPC Classifications
H; H01; H01G; H01G7/00; H01G7/02; H01G7/025; H01G7/026; H04; H04R; H04R17/00; H10; H10N; H10N30/00; H10N30/01; H10N30/04; H10N30/045; H10N30/80; H10N30/85; H10N30/853; H10N30/8536
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
AN ELEMENT FOR USE IN A PIEZOELECTRIC TRANSDUCER, COMPRISING A CERAMIC, PIEZOELECTRIC BODY, A PLURALITY OF SPACED INTERCONNECTED ELECTRODES DISPOSED ON ONE OF OPPOSITE FACES OF THE BODY, AND A PLURALITY OF SPACED INTERCONNECTED ELECTRODES ON THE OPPOSITE FACE OF SAID BODY, EACH OF SAID LATTER ELECTRODES LYING BETWEEN ADJACENT ELECTRODES ON THE SAID ONE FACE, SAID BODY POSSESSING ALTERNATING LOGITUDINAL POLARIZATION.
Claim 2
Dependent Claim
62 words
AN ELEMENT FOR USE IN A PIEZOELECTRIC TRANSDUCER, COMPRISING A CERAMIC, PIEZOELECTRIC BODY, A PLURALITY OF SPACED INTERCONNECTED ELECTRODES DISPOSED ON ONE OF OPPOSITE FACES OF THE BODY, AND A PLURALITY OF SPACED INTERCONNECTED ELECTRODES ON THE OPPOSITE FACE OF SAID BODY, EACH OF SAID LATTER ELECTRODES LYING BETWEEN ADJACENT ELECTRODES ON THE SAID ONE FACE, SAID BODY POSSESSING ALTERNATING LOGITUDINAL POLARIZATION.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-22 | 1968-09-21 | 1969-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-22 | 1972-09-21 | 1973-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-22 | 1976-09-21 | 1977-03-23 | $7700.00 | Window Closed / Lapsed |