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US2745280A
Expired / Lapsed
US
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Apparatus for supporting sheet-metal specimens during sag test
Assignee: United States Steel Corp
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Filing: 1953-08-13
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Granted: 1956-05-15
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Expires: 1973-08-13
Abstract
No abstract record available.
Inventors
- 👤 Harry L Conaway
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:29
CPC Classifications
C; C23; C23D; C23D9/00; C23D9/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US713875A
Cited
US1827805A
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US1975463A
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US1925718A
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US2506048A
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US2693107A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-15 | 1959-11-14 | 1960-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-15 | 1963-11-14 | 1964-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-15 | 1967-11-14 | 1968-05-15 | $7700.00 | Window Closed / Lapsed |