US2913510A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radioactive battery
Assignee: Individual
•
Filing: 1955-04-05
•
Granted: 1959-11-17
•
Expires: 1975-04-05
Abstract
No abstract record available.
Inventors
- 👤 John H Birden
- 👤 Kenneth C Jordan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:46
CPC Classifications
G; G21; G21H; G21H1/00; G21H1/10; G21H1/103; H; H10; H10N; H10N10/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
A RADIOACTIVE CELL COMPRISING AN EVACUATED OUTER ENVELOPE, A THERMALLY-CONDUCTING CAPSULE CONTAINING RADIOACTIVE MINERAL CHARACTERIZED BY EMISSION OF RADIATION SELECTED FROM THE GROUP CONSISTING OF ALPHA PARTICLES AND BETA RAYS DISPOSED THEREWITHIN, AND A THERMOPILE HAVING TWO GROUPS OF ALTERNATE JUNCTIONS AND PROVIDED WITH A PAIR OF OUTPUT TERMINALS FORMING THE CELL OUTPUT, ONE GROUP OF JUNCTIONS BEING IN DIRECT THERMAL CONTACT WITH SAID CAPSULE AND ELECTRICALLY INSULATED THEREFROM AND THE OTHER GROUP BEING IN THERMAL CONTACT WITH SAID ENVELOPE WHEREBY A TEMPERATURE DIFFERENCE IS MAINTAINED ACROSS SAID THERMOPILE.
Claim 2
Dependent Claim
89 words
A RADIOACTIVE CELL COMPRISING AN EVACUATED OUTER ENVELOPE, A THERMALLY-CONDUCTING CAPSULE CONTAINING RADIOACTIVE MINERAL CHARACTERIZED BY EMISSION OF RADIATION SELECTED FROM THE GROUP CONSISTING OF ALPHA PARTICLES AND BETA RAYS DISPOSED THEREWITHIN, AND A THERMOPILE HAVING TWO GROUPS OF ALTERNATE JUNCTIONS AND PROVIDED WITH A PAIR OF OUTPUT TERMINALS FORMING THE CELL OUTPUT, ONE GROUP OF JUNCTIONS BEING IN DIRECT THERMAL CONTACT WITH SAID CAPSULE AND ELECTRICALLY INSULATED THEREFROM AND THE OTHER GROUP BEING IN THERMAL CONTACT WITH SAID ENVELOPE WHEREBY A TEMPERATURE DIFFERENCE IS MAINTAINED ACROSS SAID THERMOPILE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-16 | 1963-05-18 | 1963-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-16 | 1967-05-18 | 1967-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-16 | 1971-05-18 | 1971-11-17 | $7700.00 | Window Closed / Lapsed |