Patent US1551004A successfully refreshed from Google Patents.
US1551004A
Expired / Lapsed
US
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Method and apparatus for charging billets into furnaces
Assignee: United Engineering and Foundry Co
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Filing: 1923-11-21
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Granted: 1925-08-25
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Expires: 1943-11-21
Abstract
No abstract record available.
Inventors
- 👤 Jr Florence C Biggert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:46
CPC Classifications
F; F27; F27D; F27D3/00; F27D3/0024; F27D2003/0001; F27D2003/0012; F27D2003/0013; F27D2003/0034; F27D2003/0046; F27D2003/0062; F27M; F27M2001/00; F27M2001/15; F27M2001/1539; F27M2001/156; F27M2001/1565; F27M2001/1573
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1928-08-24 | 1929-02-23 | 1929-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1932-08-24 | 1933-02-23 | 1933-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1936-08-24 | 1937-02-23 | 1937-08-25 | $7700.00 | Window Closed / Lapsed |