Patent US2547671A successfully refreshed from Google Patents.
Patent US3206057A successfully refreshed from Google Patents.
US3206057A
Expired / Lapsed
US
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Supported liquefied gas storage tank
Assignee: Shell USA Inc
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Filing: 1963-07-22
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Granted: 1965-09-14
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Expires: 1983-07-22
Abstract
No abstract record available.
Inventors
- 👤 Lionel R Prew
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:50
CPC Classifications
F; F17; F17C; F17C13/00; F17C13/08; F17C13/082; B; B63; B63B; B63B25/00; B63B25/02; B63B25/08; B63B25/12; B63B25/16; F17C3/00; F17C3/02; F17C3/025; F17C2203/00; F17C2203/06; F17C2203/0634; F17C2203/0636; F17C2203/0639; F17C2203/0658; F17C2203/0663; F17C2223/00; F17C2223/01; F17C2223/0146; F17C2223/0153; F17C2223/0161; F17C2270/00; F17C2270/01; F17C2270/0102; F17C2270/0105; Y; Y10; Y10S; Y10S220/00; Y10S220/901
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
APPARATUS FOR SUPPORTING AND MAINTAINING A LIQUEFIED GAS STORAGE TANK IN A FIXED SPACED RELATIONSHIP TO A RIGID EXTERNAL STRUCTURE COMPRISING: AT LEAST ONE HORIZONTAL WOODEN BEAM EXTENDING ALONG THE LENGTH OF EACH OF THE WALLS OF SAID TANK, SAID WOODEN BEAMS BEING RIGIDLY FASTENED TO THE INNER SURFACE OF SAID EXTERNAL STRUCTURE;
Claim 2
Dependent Claim
53 words
APPARATUS FOR SUPPORTING AND MAINTAINING A LIQUEFIED GAS STORAGE TANK IN A FIXED SPACED RELATIONSHIP TO A RIGID EXTERNAL STRUCTURE COMPRISING: AT LEAST ONE HORIZONTAL WOODEN BEAM EXTENDING ALONG THE LENGTH OF EACH OF THE WALLS OF SAID TANK, SAID WOODEN BEAMS BEING RIGIDLY FASTENED TO THE INNER SURFACE OF SAID EXTERNAL STRUCTURE;
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-13 | 1969-03-15 | 1969-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-13 | 1973-03-15 | 1973-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-13 | 1977-03-15 | 1977-09-14 | $7700.00 | Window Closed / Lapsed |