US3283512A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Earthen storage for volatile liquids and method of constructing the same
Assignee: Phillips Petroleum Co
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Filing: 1963-08-19
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Granted: 1966-11-08
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Expires: 1983-08-19
Abstract
No abstract record available.
Inventors
- 👤 Donald E Hull
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:57
CPC Classifications
F; F17; F17C; F17C3/00; F17C3/005; F17C2201/00; F17C2201/05; F17C2201/052; F17C2205/00; F17C2205/03; F17C2205/0302; F17C2205/0352; F17C2223/00; F17C2223/04; F17C2223/042; F17C2223/046; F17C2223/047; F17C2270/00; F17C2270/01; F17C2270/0142; F17C2270/0157; F17C2270/016
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
113 words
AN EARTHEN STORAGE SYSEM FOR NORMALLY GASEOUS LIQUID COMPRISING AN OPEN-TOPPED EARTHEN RESERVOIR IN FROZEN EARTH; FREEZE PIPES VERTICALLY POSITIONED IN THE EARTH AROUND THE PERIPHERY OF SAID RESERVOIR TO MAINTAIN THE WALLS OF THE RESERVOIR FROZEN; A FIRST AND SECOND VAPOR-IMPERMEABLE STEEL WALL PARTIALLY SUNK INTO THE FROZEN EARTH AROUND THE PERIPHERY OF SAID RESERVOIR ON EACH SIDE OF, AND ADJACENT, SAID FREEZE PIPES; A VAPORIMPERMEABLE COVER SEALED TO AND CONNECTING THE TOPS OF SAID WALLS TO PREVENT SUBLIMATION OF ICE FROM THE FROZEN EARTH BETWEEN SAID WALLS; A VAPOR-IMPERMEABLE ROOF COVERING SAID RESERVOIR, SUPPORTED BY SAID SEALED TO SAID WALLS; AND MEANS TO INTRODUCE WATER TO THE EARTH BETWEEN SAID WALLS.
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) | 1969-11-07 | 1970-05-09 | 1970-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-07 | 1974-05-09 | 1974-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-07 | 1978-05-09 | 1978-11-08 | $7700.00 | Window Closed / Lapsed |