US3089309A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Subterranean storage of fluids
Assignee: Sunoco Inc
•
Filing: 1960-03-25
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Granted: 1963-05-14
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Expires: 1980-03-25
Abstract
No abstract record available.
Inventors
- 👤 George M Closs
- 👤 Mawr Bryn
- 👤 Patrick F Dougherty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 00:45
CPC Classifications
F; F17; F17C; F17C3/00; F17C3/005; F17C2203/00; F17C2203/06; F17C2203/068; F17C2203/0682; F17C2205/00; F17C2205/03; F17C2205/0302; F17C2205/0323; F17C2205/0335; F17C2221/00; F17C2221/03; F17C2221/032; F17C2221/035; F17C2223/00; F17C2223/01; F17C2223/0146; F17C2223/0153; F17C2223/03; F17C2223/033; F17C2227/00; F17C2227/01; F17C2227/0128; F17C2227/0135; F17C2250/00; F17C2250/04; F17C2250/0404; F17C2250/0408; F17C2250/043; F17C2260/00; F17C2260/02; F17C2260/021; F17C2260/04; F17C2260/042; F17C2270/00; F17C2270/01; F17C2270/0142; F17C2270/0144; F17C2270/0147; F17C2270/0149; F17C2270/0157; F17C2270/016
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
IN A SUBTERRANEAN CAVERN FOR STORING A FLUID AT SUPERATMOSPHERIC PRESSURE, SAID CAVERN HAVING A COMMUNICATING SHAFT EXTENDING FROM THE SURFACE OF THE EARTH DOWNWARDLY TO THE CAVERN: A CASING SEALED IN SAID SHAFT, A CLOSURE SEALED INTO SAID CASING AT A POINT BELOW THE SURFACE OF THE EARTH, A SUMP EXTENDING DOWNWARDLY FROM THE FLOOR OF SAID CAVERN, A QUANTITY OF A SEALING LIQUID MAINTAINED PERMANENTLY IN SAID SUMP, SAID SEALING LIQUID BEING IMMISCIBLE WITH A FLUID STORED IN SAID CAVERN AND HAVING A HIGHER SPECIFIC GRAVITY THAN SUCH STORED FLUID; A FILL PIPE FOR SAID STORED FLUID SEALED INTO SAID CASING, EXTENDING DOWNWARDLY THEREIN, SEALED THROUGH SAID CLOSURE, AND EXTENDING THROUGH SAID STORED FLUID AND OPENING INTO SOLELY THE SEALING LIQUID IN SAID SUMP; AND ANOTHER CLOSURE SEALED TO THE UPPER END OF SAID CASING, ABOVE THE SURFACE OF THE EARTH.
Claim 2
Dependent Claim
143 words
IN A SUBTERRANEAN CAVERN FOR STORING A FLUID AT SUPERATMOSPHERIC PRESSURE, SAID CAVERN HAVING A COMMUNICATING SHAFT EXTENDING FROM THE SURFACE OF THE EARTH DOWNWARDLY TO THE CAVERN: A CASING SEALED IN SAID SHAFT, A CLOSURE SEALED INTO SAID CASING AT A POINT BELOW THE SURFACE OF THE EARTH, A SUMP EXTENDING DOWNWARDLY FROM THE FLOOR OF SAID CAVERN, A QUANTITY OF A SEALING LIQUID MAINTAINED PERMANENTLY IN SAID SUMP, SAID SEALING LIQUID BEING IMMISCIBLE WITH A FLUID STORED IN SAID CAVERN AND HAVING A HIGHER SPECIFIC GRAVITY THAN SUCH STORED FLUID; A FILL PIPE FOR SAID STORED FLUID SEALED INTO SAID CASING, EXTENDING DOWNWARDLY THEREIN, SEALED THROUGH SAID CLOSURE, AND EXTENDING THROUGH SAID STORED FLUID AND OPENING INTO SOLELY THE SEALING LIQUID IN SAID SUMP; AND ANOTHER CLOSURE SEALED TO THE UPPER END OF SAID CASING, ABOVE THE SURFACE OF THE EARTH.
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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) | 1966-05-13 | 1966-11-12 | 1967-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-13 | 1970-11-12 | 1971-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-13 | 1974-11-12 | 1975-05-14 | $7700.00 | Window Closed / Lapsed |