US3296555A
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Temperature-stable sonic transmission elements comprising crystalline materials containing jahn-teller ions
Assignee: AT&T Inc
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Filing: 1964-10-08
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Granted: 1967-01-03
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Expires: 1984-10-08
Abstract
No abstract record available.
Inventors
- 👤 David B Fraser
- 👤 Ernst M Gyorgy
- 👤 Craw Roy C Le
- 👤 Frank J Schnettler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:11
CPC Classifications
H; H03; H03H; H03H9/00; H03H9/30; H03H9/36; H03B; H03B5/00; H03B5/30; H03H3/00; H03H3/007; H03H3/02; H03H3/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
DEVICE COMPRISING A CRYSTALLINE MATERIAL CONTAINING AT LEAST ONE JAHN-TELLER ION MANIFESTING A LARGE JAHNTELLER EFFECT, SUCH INCLUSION BEING IN THE AMOUNT OF AT LEAST 0.02 PERCENT BY WEIGHT BASED ON THE ENTIRE COMPOSITION UP TO 50 ATOM PERCENT BASED ON TOTAL CATION CONTENT TOGETHER WITH MEANS FOR PRODUCING AN ELASTIC WAVE IN THE
Claim 2
Dependent Claim
54 words
DEVICE COMPRISING A CRYSTALLINE MATERIAL CONTAINING AT LEAST ONE JAHN-TELLER ION MANIFESTING A LARGE JAHNTELLER EFFECT, SUCH INCLUSION BEING IN THE AMOUNT OF AT LEAST 0.02 PERCENT BY WEIGHT BASED ON THE ENTIRE COMPOSITION UP TO 50 ATOM PERCENT BASED ON TOTAL CATION CONTENT TOGETHER WITH MEANS FOR PRODUCING AN ELASTIC WAVE IN THE
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) | 1970-01-02 | 1970-07-04 | 1971-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-02 | 1974-07-04 | 1975-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-02 | 1978-07-04 | 1979-01-03 | $7700.00 | Window Closed / Lapsed |