US3287659A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Signal generators using semiconductor material in magnetic and electric fields
Assignee: Boeing Co
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Filing: 1963-12-12
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Granted: 1966-11-22
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Expires: 1983-12-12
Abstract
No abstract record available.
Inventors
- 👤 Ancker-Johnson Betsy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:27
CPC Classifications
H; H03; H03B; H03B7/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
A SIGNAL GENERATOR COMPRISING IN COMBINATION: A BLOCK OF SEMICONDUCTOR MATERIAL HAVING A GRADATION IN A PHYSICAL CHARACTERISTIC THEREOF; A SIGNAL OUTPUT CIRCUIT COUPLED WITH SAID MATERIAL; AND MEANS FOR ESTABLISHED PARALLEL ELECTRIC AND MAGNETIC FIELDS IN SAID MATERIAL AND FOR INJECTING CURRENT CARRIES INTO SAID DEVICE TO ESTABLISH A LOW DENSITY PLASMA THEREWITHIN WITHOUT THE OCCURRENCE OF IMPACT IONIZATION AND WITH THE PLASMA HAVING A DENSITY GRADIENT PARLLEL TO SAID FIELDS; WHEREBY HIGH FREQUENCY SIGNALS ARE PROVIDED IN SAID SIGNAL OUTPUT CIRCUIT.
Claim 2
Dependent Claim
83 words
A SIGNAL GENERATOR COMPRISING IN COMBINATION: A BLOCK OF SEMICONDUCTOR MATERIAL HAVING A GRADATION IN A PHYSICAL CHARACTERISTIC THEREOF; A SIGNAL OUTPUT CIRCUIT COUPLED WITH SAID MATERIAL; AND MEANS FOR ESTABLISHED PARALLEL ELECTRIC AND MAGNETIC FIELDS IN SAID MATERIAL AND FOR INJECTING CURRENT CARRIES INTO SAID DEVICE TO ESTABLISH A LOW DENSITY PLASMA THEREWITHIN WITHOUT THE OCCURRENCE OF IMPACT IONIZATION AND WITH THE PLASMA HAVING A DENSITY GRADIENT PARLLEL TO SAID FIELDS; WHEREBY HIGH FREQUENCY SIGNALS ARE PROVIDED IN SAID SIGNAL OUTPUT CIRCUIT.
References Cited (Backward Citations)
US3011133A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-21 | 1970-05-23 | 1970-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-21 | 1974-05-23 | 1974-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-21 | 1978-05-23 | 1978-11-22 | $7700.00 | Window Closed / Lapsed |