US3219823A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Narrow-band radiation detector using cyclotron resonance
Assignee: —
•
Filing: —
•
Granted: 1965-11-23
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Expires: 1982-11-23
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:17
CPC Classifications
H; H10; H10F; H10F30/00; H10F30/20; H10F30/29
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
A RADIATION DETECTOR COMPRISING A MASS OF SEMICONDUCTOR MATERIAL CONTAINED IN REFLECTING ENVELOPE MEANS FOR ADMITTING EXTERNAL RADIATION INTO THE MASS OF MATERIAL AND FOR THEREAFTER REFLECTING IT IN A MULTIPLICITY OF PATHS TRANSVERSELY THROUGH THE MATERIAL, MEANS FOR MEASURING THE CONDUCTANCE OF THE MASS, COMPRISING ELECTRICAL CONNECTIONS CONNECTED TO THE MASS AND THEREBY DEFINING A CURRENT PATH CROSSED TRANSVERSELY BY RADIATION IN THE MATERIAL, COOLING MEANS FOR COOLING THE SEMICONDUCTOR MASS, AND MEANS FOR ESTABLISHING A MAGNETIC FLUX IN THE MASS.
Claim 2
Dependent Claim
82 words
A RADIATION DETECTOR COMPRISING A MASS OF SEMICONDUCTOR MATERIAL CONTAINED IN REFLECTING ENVELOPE MEANS FOR ADMITTING EXTERNAL RADIATION INTO THE MASS OF MATERIAL AND FOR THEREAFTER REFLECTING IT IN A MULTIPLICITY OF PATHS TRANSVERSELY THROUGH THE MATERIAL, MEANS FOR MEASURING THE CONDUCTANCE OF THE MASS, COMPRISING ELECTRICAL CONNECTIONS CONNECTED TO THE MASS AND THEREBY DEFINING A CURRENT PATH CROSSED TRANSVERSELY BY RADIATION IN THE MATERIAL, COOLING MEANS FOR COOLING THE SEMICONDUCTOR MASS, AND MEANS FOR ESTABLISHING A MAGNETIC FLUX IN THE MASS.
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) | 1968-11-22 | 1969-05-24 | 1969-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-22 | 1973-05-24 | 1973-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-22 | 1977-05-24 | 1977-11-23 | $7700.00 | Window Closed / Lapsed |