US3295328A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reservoir for storage of volatile liquids and method of forming the same
Assignee: Phillips Petroleum Co
•
Filing: 1963-12-05
•
Granted: 1967-01-03
•
Expires: 1983-12-05
Abstract
No abstract record available.
Inventors
- 👤 George F L Bishop
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 01:49
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; 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; F17C2227/0171; F17C2227/0178; F17C2260/00; F17C2260/03; F17C2260/031; F17C2270/00; F17C2270/01; F17C2270/0142; F17C2270/0144; F17C2270/0149
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
THE METHOD OF FORMING A RESERVOIR IN THE EARTH''S SURFACE WHICH COMPRISES DRILLING A PLURALITY OF BOREHOLES SPACED WITHIN EARTH FREEZING DISTANCE OF EACH OTHER ABOUT THE PERIPHERY OF THE RESERVOIR SITE DOWNWARDLY INTO THE EARTH AND DIRECTIONALLY TOWARD THE CENTER OF THE RESERVOIR SITE SO THAT THE BOREHOLES TERMINATE WITHIN EARTH FREEZING DISTANCE OF THE CENTER OF THE BOTTOM OF THE PROPOSED RESERVOIR; CIRCULATING REFRIGERANT IN SAID BOREHOLES TO FREEZE THE EARTH SURROUNDING SAID BOREHOLES, THEREBY TO FORM A SHELL OF FROZEN EARTH AROUND AND UNDER THE SITE OF THE PROPOSED RESERVOIR; AND EXCAVATING THE UNFROZEN EARTH WITHIN THE SHELL OF FROZEN EARTH.
Claim 2
Independent Claim
104 words
THE METHOD OF FORMING A RESERVOIR IN THE EARTH''S SURFACE WHICH COMPRISES DRILLING A PLURALITY OF BOREHOLES SPACED WITHIN EARTH FREEZING DISTANCE OF EACH OTHER ABOUT THE PERIPHERY OF THE RESERVOIR SITE DOWNWARDLY INTO THE EARTH AND DIRECTIONALLY TOWARD THE CENTER OF THE RESERVOIR SITE SO THAT THE BOREHOLES TERMINATE WITHIN EARTH FREEZING DISTANCE OF THE CENTER OF THE BOTTOM OF THE PROPOSED RESERVOIR; CIRCULATING REFRIGERANT IN SAID BOREHOLES TO FREEZE THE EARTH SURROUNDING SAID BOREHOLES, THEREBY TO FORM A SHELL OF FROZEN EARTH AROUND AND UNDER THE SITE OF THE PROPOSED RESERVOIR; AND EXCAVATING THE UNFROZEN EARTH WITHIN THE SHELL OF FROZEN EARTH.
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) | 1970-01-02 | 1970-07-04 | 1971-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-02 | 1974-07-04 | 1975-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-02 | 1978-07-04 | 1979-01-03 | $7700.00 | Window Closed / Lapsed |