Patent US3404497A successfully refreshed from Google Patents.
US3404497A
Expired / Lapsed
US
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Pre-stressed concrete pressure vessel for housing nuclear reactor, and method of making same
Assignee: Taylor Woodrow Construction Ltd
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Filing: 1965-07-22
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Granted: 1968-10-08
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Expires: 1985-07-22
Abstract
No abstract record available.
Inventors
- 👤 Burrow Reginald Edwin Downton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:20
CPC Classifications
G; G21; G21C; G21C13/00; G21C13/08; G21C13/093; G21C13/0933; E; E04; E04G; E04G21/00; E04G21/12; E04H; E04H7/00; E04H7/02; E04H7/18; E04H7/20; F; F17; F17C; F17C1/00; F17C1/02; F17C1/04; F17C1/06; F17C2203/00; F17C2203/06; F17C2203/0634; F17C2203/0636; F17C2203/0639; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1804888A
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FR837018A
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FR866928A
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FR874686A
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US2803868A
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US2932964A
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DE1023440B
Cited
FR1290306A
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US3278128A
Cited
GB989663A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-08 | 1972-04-08 | 1972-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-08 | 1976-04-08 | 1976-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-08 | 1980-04-08 | 1980-10-08 | $7700.00 | Window Closed / Lapsed |