Patent US3339153A successfully refreshed from Google Patents.
US3339153A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Amplification oscillation and mixing in a single piece of bulk semiconductor
Assignee: AT&T Inc
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Filing: 1965-12-27
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Granted: 1967-08-29
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Expires: 1985-12-27
Abstract
No abstract record available.
Inventors
- 👤 Basil W Hakki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 03:31
CPC Classifications
H; H03; H03D; H03D9/00; H03D9/06; H03D9/0608; H03D9/0625; H03B; H03B9/00; H03B9/12; H03B9/14; H03B9/145
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
IN COMBINATION: MEANS FOR GENERATING AND AMPLIFYING A BEAT FREQUENCY COMPRISING A BULK SEMICONDUCTIVE WAFER CHARACTERIZED BY A CAPACITY FOR GENERATING TRAVELING DOMAIN OSCILLATIONS THROUGH ELECTRIC FIELD INDUCED CARRIER TRANSISTIONS TO LOW MOBILITY STATES WHEN BIASED AT A VOLTAGE ABOVE A THRESHOLD, AND WHEN BIASED AT A SUBTHRESHOLD VOLTAGE BELOW SAID THRESHOLD VOLTAGE, HAVING PARAMETERS THAT SUBSTANTIALLY CONFORM TO THE RELATION,
Claim 2
Dependent Claim
61 words
IN COMBINATION: MEANS FOR GENERATING AND AMPLIFYING A BEAT FREQUENCY COMPRISING A BULK SEMICONDUCTIVE WAFER CHARACTERIZED BY A CAPACITY FOR GENERATING TRAVELING DOMAIN OSCILLATIONS THROUGH ELECTRIC FIELD INDUCED CARRIER TRANSISTIONS TO LOW MOBILITY STATES WHEN BIASED AT A VOLTAGE ABOVE A THRESHOLD, AND WHEN BIASED AT A SUBTHRESHOLD VOLTAGE BELOW SAID THRESHOLD VOLTAGE, HAVING PARAMETERS THAT SUBSTANTIALLY CONFORM TO THE RELATION,
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) | 1970-08-28 | 1971-02-27 | 1971-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-28 | 1975-02-27 | 1975-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-28 | 1979-02-27 | 1979-08-29 | $7700.00 | Window Closed / Lapsed |