Patent US3515638A successfully refreshed from Google Patents.
US3515638A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel systems for nuclear reactors
Assignee: Atomic Power Development Associates Inc
•
Filing: 1967-05-12
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Granted: 1970-06-02
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Expires: 1987-05-12
Abstract
No abstract record available.
Inventors
- 👤 John B Nims Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 02:07
CPC Classifications
G; G21; G21C; G21C3/00; G21C3/02; G21C3/04; G21C3/06; G21C3/12; G21C5/00; G21C5/02; G21C5/06; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3070531A
Cited
FR1237542A
Cited
US2994657A
Cited
US3147191A
Cited
US3324008A
Cited
US3338791A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-06-01 | 1973-12-01 | 1974-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-01 | 1977-12-01 | 1978-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-01 | 1981-12-01 | 1982-06-02 | $7700.00 | Window Closed / Lapsed |