US3338010A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insulation foundation for low temperature and cryogenic storage tanks
Assignee: Chicago Bridge and Iron Co
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Filing: 1964-12-22
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Granted: 1967-08-29
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Expires: 1984-12-22
Abstract
No abstract record available.
Inventors
- 👤 Whitney H Waugh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:17
CPC Classifications
F; F17; F17C; F17C13/00; F17C13/08; F17C13/081; F17C2203/00; F17C2203/06; F17C2203/0634; F17C2203/0678; Y; Y10; Y10S; Y10S220/00; Y10S220/901
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
IN A CRYOGENIC STORAGE TANK HAVING AN OUTER VESSEL AND AN INNER VESSEL DISPOSED WITHIN AND SPACED FROM SAID OUTER VESSEL AND HAVING A SUBSTANTIALLY FLAT BOTTOM, A FOUNDATION COMPRISING: A LEVELING PAD DISPOSED AS THE BOTTOM OF SAID OUTER VESSEL; A PLURALITY OF CONCRETE BLOCKS DISPOSED ON SAID LEVELING PAD, SAID BLOCKS BEING CONTIGUOUS TO EACH OTHER;
Claim 2
Dependent Claim
58 words
IN A CRYOGENIC STORAGE TANK HAVING AN OUTER VESSEL AND AN INNER VESSEL DISPOSED WITHIN AND SPACED FROM SAID OUTER VESSEL AND HAVING A SUBSTANTIALLY FLAT BOTTOM, A FOUNDATION COMPRISING: A LEVELING PAD DISPOSED AS THE BOTTOM OF SAID OUTER VESSEL; A PLURALITY OF CONCRETE BLOCKS DISPOSED ON SAID LEVELING PAD, SAID BLOCKS BEING CONTIGUOUS TO EACH OTHER;
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-08-28 | 1971-02-27 | 1971-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-28 | 1975-02-27 | 1975-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-28 | 1979-02-27 | 1979-08-29 | $7700.00 | Window Closed / Lapsed |