US3023619A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Underground storage
Assignee: Phillips Petroleum Co
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Filing: 1960-04-25
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Granted: 1962-03-06
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Expires: 1980-04-25
Abstract
No abstract record available.
Inventors
- 👤 Robert M Sandford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:48
CPC Classifications
F; F17; F17C; F17C3/00; F17C3/005; G; G01; G01F; G01F23/00; G01F23/14; G01F23/16; G01F23/161; F17C2205/00; F17C2205/03; F17C2205/0302; F17C2205/0323; F17C2205/0326; F17C2221/00; F17C2221/03; F17C2221/032; F17C2221/035; F17C2223/00; F17C2223/01; F17C2223/0146; F17C2223/0153; F17C2223/03; F17C2223/033; F17C2250/00; F17C2250/04; F17C2250/0404; F17C2250/043; F17C2250/0434; F17C2250/06; F17C2250/0605; F17C2250/061; F17C2270/00; F17C2270/01; F17C2270/0142; F17C2270/0144; F17C2270/0149; F17C2270/0152; F17C2270/0157; F17C2270/016
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-03-05 | 1965-09-04 | 1966-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-05 | 1969-09-04 | 1970-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-05 | 1973-09-04 | 1974-03-06 | $7700.00 | Window Closed / Lapsed |