US2631558A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Marine oil storage tank
Assignee: Stanolind Oil and Gas Co
•
Filing: 1948-07-31
•
Granted: 1953-03-17
•
Expires: 1968-07-31
Abstract
No abstract record available.
Inventors
- 👤 Frederic R Harris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:54
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/01; B; B65; B65D; B65D88/00; B65D88/78; E21B43/34; E21B43/36
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US636076A
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US835216A
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US1176526A
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US1219115A
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DE346114C
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US1220825A
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US1494906A
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US1495529A
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US1710006A
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US1759644A
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US2402790A
Cited
US2422555A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-16 | 1956-09-15 | 1957-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-16 | 1960-09-15 | 1961-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-16 | 1964-09-15 | 1965-03-17 | $7700.00 | Window Closed / Lapsed |