Patent US2528141A successfully refreshed from Google Patents.
US3133196A
Expired / Lapsed
US
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Radioactive heat source and container with helium permeable window in the container
Assignee: General Electric Co
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Filing: 1959-10-29
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Granted: 1964-05-12
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Expires: 1979-10-29
Abstract
No abstract record available.
Inventors
- 👤 Robert S Rochlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:26
CPC Classifications
G; G21; G21H; G21H1/00; G21H1/10; G21H1/103; G21H3/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
A HEAT ENERGY SOURCE OF THE TYPE UTILIZING A RADIOACTIVE ISOTOPE TOGENERATE HEAT DURING DECAY COMPRISING RETAINING MEANS FOR RETAINING A HEAT-GENERATING ALPHAPARTICLE-EMITTING RADIOACTIVE ISOTOPE, MEANS FOR RELIEVING GAS PRESSURE ON SAID RETAINING MEANS AND PREVENTING RELEASE OF THE ISOTOPE IN ANY PHYSICAL FORM INCLUDING A MEMBER PERMEABLE TO THE HELIUM GAS GENERATED BY THE ALPHA-PARTICLE EMISSION BUT IMPERVIOUS TO THE ISOTOPE IN GASEOUS, LIQUID OR SOLID FORM.
Claim 2
Dependent Claim
68 words
A HEAT ENERGY SOURCE OF THE TYPE UTILIZING A RADIOACTIVE ISOTOPE TOGENERATE HEAT DURING DECAY COMPRISING RETAINING MEANS FOR RETAINING A HEAT-GENERATING ALPHAPARTICLE-EMITTING RADIOACTIVE ISOTOPE, MEANS FOR RELIEVING GAS PRESSURE ON SAID RETAINING MEANS AND PREVENTING RELEASE OF THE ISOTOPE IN ANY PHYSICAL FORM INCLUDING A MEMBER PERMEABLE TO THE HELIUM GAS GENERATED BY THE ALPHA-PARTICLE EMISSION BUT IMPERVIOUS TO THE ISOTOPE IN GASEOUS, LIQUID OR SOLID FORM.
References Cited (Backward Citations)
US1505209A
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US2405026A
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US2479882A
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US2491370A
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US2873853A
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US2651730A
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US2883553A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-12 | 1967-11-11 | 1968-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-12 | 1971-11-11 | 1972-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-12 | 1975-11-11 | 1976-05-12 | $7700.00 | Window Closed / Lapsed |