Patent US3374638A successfully refreshed from Google Patents.
US3374638A
Expired / Lapsed
US
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System for cooling, purging and warming liquefied gas storage tanks and for controlling the boil-off rate of cargo therein
Assignee: Individual
•
Filing: 1966-04-19
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Granted: 1968-03-26
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Expires: 1986-04-19
Abstract
No abstract record available.
Inventors
- 👤 Norman K Basile
- 👤 Donald R Yearwood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:56
CPC Classifications
F; F17; F17C; F17C13/00; F17C13/004; F17C13/02; F17C2203/00; F17C2203/03; F17C2223/00; F17C2223/01; F17C2223/0146; F17C2223/0153; F17C2223/0161; F17C2227/00; F17C2227/01; F17C2227/0128; F17C2227/0135; F17C2227/03
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2922287A
Cited
US2940268A
Cited
US2927437A
Cited
US2863297A
Cited
US2916889A
Cited
US2972873A
Cited
US3110156A
Cited
FR1296939A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-26 | 1971-09-25 | 1972-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-26 | 1975-09-25 | 1976-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-26 | 1979-09-25 | 1980-03-26 | $7700.00 | Window Closed / Lapsed |