Patent US3300982A successfully refreshed from Google Patents.
US3300982A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Storage of volatile liquids
Assignee: Phillips Petroleum Co
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Filing: 1963-08-19
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Granted: 1967-01-31
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Expires: 1983-08-19
Abstract
No abstract record available.
Inventors
- 👤 Leonard P Meade
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:35
CPC Classifications
F; F17; F17C; F17C3/00; F17C3/005; F17C2201/00; F17C2201/01; F17C2201/0104; F17C2201/0109; F17C2201/03; F17C2201/032; F17C2201/05; F17C2201/052; F17C2203/00; F17C2203/03; F17C2203/0304; F17C2203/0345; F17C2203/035; F17C2203/06; F17C2203/0634; F17C2203/0636; F17C2203/0639; F17C2203/0646; F17C2203/0678; F17C2221/00; F17C2221/03; F17C2221/032; F17C2221/033; F17C2221/035; F17C2223/00; F17C2223/01; F17C2223/0146; F17C2223/0153; F17C2223/0161; F17C2223/03; F17C2223/033; F17C2223/04; F17C2223/042; F17C2223/046; F17C2223/047; F17C2225/00; F17C2225/04; F17C2225/042; F17C2225/046; F17C2225/047; F17C2227/00; F17C2227/01; F17C2227/0128; F17C2227/0135; F17C2270/00; F17C2270/01; F17C2270/0142; F17C2270/0144; F17C2270/0149
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
AN EARTHEN STORAGE SYSTEM 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 VERTICAL, ENCLOSING, VAPOR-IMPERMEABLE WALL FROZEN TO THE EARTH AROUND THE PERIPHERY OF THE RESERVOIR BETWEEN THE RESERVOIR AND FREEZE PIPES; AN INSULATED ROOF COVERING SAID RESERVOIR SUPPORTED BY AND SEALED TO SAID FIRST WALL; A SECOND VERTICAL, VAPOR-IMPERMEABLE WALL SEALED TO THE UNFROZEN EARTH AROUND SAID FIRST WALL AND SPACED FROM SAID FIRST WALL SO AS TO ENCLOSE SAID FREEZE PIPES; A VAPORIMPERMEABLE COVER SEALED TO SAID SECOND WALL AND SAID ROOF SO AS TO ENCLOSE SAID FREEZE PIPES IN A VAPOR-TIGHT SPACE; AND A VENT COMMUNICATING BETWEEN THE ATMOSPHERE AND THE SPACE BENEATH THE COVER AND BETWEEN SAID FIRST AND SECOND WALLS.
Claim 2
Dependent Claim
142 words
AN EARTHEN STORAGE SYSTEM 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 VERTICAL, ENCLOSING, VAPOR-IMPERMEABLE WALL FROZEN TO THE EARTH AROUND THE PERIPHERY OF THE RESERVOIR BETWEEN THE RESERVOIR AND FREEZE PIPES; AN INSULATED ROOF COVERING SAID RESERVOIR SUPPORTED BY AND SEALED TO SAID FIRST WALL; A SECOND VERTICAL, VAPOR-IMPERMEABLE WALL SEALED TO THE UNFROZEN EARTH AROUND SAID FIRST WALL AND SPACED FROM SAID FIRST WALL SO AS TO ENCLOSE SAID FREEZE PIPES; A VAPORIMPERMEABLE COVER SEALED TO SAID SECOND WALL AND SAID ROOF SO AS TO ENCLOSE SAID FREEZE PIPES IN A VAPOR-TIGHT SPACE; AND A VENT COMMUNICATING BETWEEN THE ATMOSPHERE AND THE SPACE BENEATH THE COVER AND BETWEEN SAID FIRST AND SECOND 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) | 1970-01-30 | 1970-08-01 | 1971-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-30 | 1974-08-01 | 1975-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-30 | 1978-08-01 | 1979-01-31 | $7700.00 | Window Closed / Lapsed |