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Patent US3566459A successfully refreshed from Google Patents.
US3566459A
Expired / Lapsed
US
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Pressure sensitive transducers
Assignee: National Aeronautics and Space Administration
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Filing: 1968-06-19
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Granted: 1971-03-02
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Expires: 1988-06-19
Abstract
Abstract ACCORDING TO THE DISCLOSURE, THERE IS DISCLOSED A MINIATURE ELECTROMECHANICAL JUNCTION TRANSDUCER, THE OPERATION OF WHICH IS BASED ON PIEZOJUNCTION EFFECT. THE MECHANICAL INPUT COUPLING MEMBER, IN THE SUBJECT INVENTION, AS DISTINQUISHED FROM THE PRIOR ART, IS FORMED IN SITU AND SPREAD OVER THE TOP OF THE MESA STRUCTURE TO FORM AN EXACT DUPLICATE OF THE MESA SURFACE AT THE AREAOF CONTACT.
Inventors
- 👤 Wilhelm Rindner
- 👤 Americo A Iannini
- 👤 Andre Garfein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:01
CPC Classifications
H; H10; H10D; H10D99/00; H10D48/00; H10D48/50; Y; Y10; Y10T; Y10T29/00; Y10T29/42; Y10T29/49; Y10T29/49002; Y10T29/49007
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |