US2903860A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for unloading cold low temperature boiling liquids from storage reservoir
Assignee: Constock Liquid Methane Corp
•
Filing: 1955-09-13
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Granted: 1959-09-15
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Expires: 1975-09-13
Abstract
No abstract record available.
Inventors
- 👤 Edwin H Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:57
CPC Classifications
F; F17; F17C; F17C9/00; F17C2221/00; F17C2221/03; F17C2221/032; F17C2221/033; F17C2223/00; F17C2223/01; F17C2223/0146; F17C2223/0153; F17C2223/0161; F17C2225/00; F17C2225/01; F17C2225/0107; F17C2225/0123; F17C2227/00; F17C2227/03; F17C2227/0302; F17C2227/0367; F17C2227/0369; F17C2227/0372; F17C2227/0374; F17C2227/0388; F17C2227/0393; F17C2270/00; F17C2270/01; F17C2270/0102; F17C2270/0105; F17C2270/011
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1973752A
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US2770951A
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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) | 1962-09-14 | 1963-03-16 | 1963-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-14 | 1967-03-16 | 1967-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-14 | 1971-03-16 | 1971-09-15 | $7700.00 | Window Closed / Lapsed |