Patent US2670100A successfully refreshed from Google Patents.
US2670100A
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Storage tank
Assignee: HAMMOND IRON WORKS
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Filing: 1951-06-13
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Granted: 1954-02-23
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Expires: 1971-06-13
Abstract
No abstract record available.
Inventors
- 👤 Alexander F Fino
- 👤 Fred L Plummer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 03:28
CPC Classifications
B; B65; B65D; B65D90/00; B65D90/22; B65D90/38
Claims Analysis
Total Claims: 0
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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) | 1957-02-22 | 1957-08-24 | 1958-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-02-22 | 1961-08-24 | 1962-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-02-22 | 1965-08-24 | 1966-02-23 | $7700.00 | Window Closed / Lapsed |