Patent US2518404A successfully refreshed from Google Patents.
US2518404A
Expired / Lapsed
US
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Charging box loader
Assignee: Carnegie Illinois Steel Corp
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Filing: 1946-01-09
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Granted: 1950-08-08
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Expires: 1966-01-09
Abstract
No abstract record available.
Inventors
- 👤 John S Townsend
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:10
CPC Classifications
F; F27; F27D; F27D3/00; F27D3/0025; F27D3/003; F27D3/12; F27D2003/0034; F27D2003/0039; F27D2003/004; F27D2003/0059; F27D2003/0062; F27D2003/0085; F27D2003/0089; F27D2003/009; F27D2003/125; F27D2003/127
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) | 1953-08-07 | 1954-02-06 | 1954-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-07 | 1958-02-06 | 1958-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-07 | 1962-02-06 | 1962-08-08 | $7700.00 | Window Closed / Lapsed |