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US2715958A
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US
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Chain conveyor for handling pierced billets and mandrel bars
Assignee: United States Steel Corp
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Filing: 1954-02-18
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Granted: 1955-08-23
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Expires: 1974-02-18
Abstract
No abstract record available.
Inventors
- 👤 Walter A Lindstrom
- 👤 Adolf O Preuss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:49
CPC Classifications
B; B21; B21B; B21B25/00; B21B25/06; B21B25/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1252583A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-08-22 | 1959-02-21 | 1959-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-08-22 | 1963-02-21 | 1963-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-08-22 | 1967-02-21 | 1967-08-23 | $7700.00 | Window Closed / Lapsed |