Patent US3425905A successfully refreshed from Google Patents.
US3425905A
Expired / Lapsed
US
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Nuclear reactors
Assignee: United Kingdom Atomic Energy Authority
•
Filing: 1966-07-18
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Granted: 1969-02-04
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Expires: 1986-07-18
Abstract
No abstract record available.
Inventors
- 👤 Frank Geoffrey Greenhalgh
- 👤 Walter John Cairns
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:44
CPC Classifications
G; G21; G21C; G21C1/00; G21C1/04; G21C1/06; G21C1/14; G21C1/16; G21C1/18; G21C1/20; G21C3/00; G21C3/02; G21C3/04; G21C3/30; G21C3/32; G21C3/34; G21C3/344; 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)
US2926127A
Cited
US3175957A
Cited
US3249505A
Cited
US3240677A
Cited
US3226301A
Cited
FR1368511A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-04 | 1972-08-05 | 1973-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-04 | 1976-08-05 | 1977-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-04 | 1980-08-05 | 1981-02-04 | $7700.00 | Window Closed / Lapsed |