US2745973A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radioactive battery employing intrinsic semiconductor
Assignee: RCA Corp
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Filing: 1953-11-02
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Granted: 1956-05-15
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Expires: 1973-11-02
Abstract
No abstract record available.
Inventors
- 👤 Rappaport Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:57
CPC Classifications
G; G21; G21H; G21H1/00; G21H1/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
A PRIMARY SOURCE OF ELECTRICAL ENERGY COMPRISING, A BODY OF SEMICONDUCTING MATERIAL HAVING A RESISTIVITY SUBSTANTIALLY IN OR NEAR THE INTRINSIC REGION, A P-TYPE CONDUCTIVITY REGION FORMED AT ONE SURFACE OF SAID BODY, AN N-TYPE CONDUCTIVITY REGION FORMED AT AN OPPOSING SURFACE OF SAID BODY, A SOURCE OF NUCLEAR EMISSION FOR IRRADIATING SAID BODY TO ESTABLISH A DIFFERENCE IN ELECTRIC POTENTIAL BETWEEN SAID REGIONS, AND CONNECTION MEANS COUPLED TO SAID REGIONS FOR SUPPLYING THE ENERGY OF SAID POTENTIAL TO A LOAD CIRCUIT.
Claim 2
Dependent Claim
82 words
A PRIMARY SOURCE OF ELECTRICAL ENERGY COMPRISING, A BODY OF SEMICONDUCTING MATERIAL HAVING A RESISTIVITY SUBSTANTIALLY IN OR NEAR THE INTRINSIC REGION, A P-TYPE CONDUCTIVITY REGION FORMED AT ONE SURFACE OF SAID BODY, AN N-TYPE CONDUCTIVITY REGION FORMED AT AN OPPOSING SURFACE OF SAID BODY, A SOURCE OF NUCLEAR EMISSION FOR IRRADIATING SAID BODY TO ESTABLISH A DIFFERENCE IN ELECTRIC POTENTIAL BETWEEN SAID REGIONS, AND CONNECTION MEANS COUPLED TO SAID REGIONS FOR SUPPLYING THE ENERGY OF SAID POTENTIAL TO A LOAD CIRCUIT.
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) | 1959-05-15 | 1959-11-14 | 1960-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-15 | 1963-11-14 | 1964-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-15 | 1967-11-14 | 1968-05-15 | $7700.00 | Window Closed / Lapsed |