US2961840A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Storage of volatile liquids
Assignee: Phillips Petroleum Co
•
Filing: 1957-08-12
•
Granted: 1960-11-29
•
Expires: 1977-08-12
Abstract
No abstract record available.
Inventors
- 👤 Walter A Goldtrap
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:46
CPC Classifications
E; E21; E21F; E21F17/00; E21F17/16; E21D; E21D1/00; E21D1/10; E21D1/12; E21D1/14; F; F17; F17C; F17C3/00; F17C3/005; F17C2201/00; F17C2201/05; F17C2201/052; F17C2203/00; F17C2203/03; F17C2203/0304; F17C2203/0308; F17C2203/032; F17C2203/0345; F17C2203/035; F17C2203/0354; F17C2203/06; F17C2203/0602; F17C2203/0604; F17C2203/0634; F17C2203/0658; F17C2203/0663; F17C2203/0673; F17C2203/0678; 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; F17C2227/0157; F17C2227/03; F17C2227/0337; F17C2227/0341; F17C2250/00; F17C2250/03; F17C2250/032; F17C2250/04; F17C2250/0404; F17C2250/0439; F17C2250/06; F17C2250/0605; F17C2250/0626; F17C2250/0631; F17C2250/07; F17C2250/072; F17C2260/00; F17C2260/03; F17C2260/031; F17C2260/032; F17C2270/00; F17C2270/01; F17C2270/0142; F17C2270/0144; F17C2270/0149; F17C2270/0157; F17C2270/016
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1963-11-29 | 1964-05-30 | 1964-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-29 | 1968-05-30 | 1968-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-29 | 1972-05-30 | 1972-11-29 | $7700.00 | Window Closed / Lapsed |