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US2715959A
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Multiblock wire-drawing apparatus and method
Assignee: JOHN A ROEBLING S SONS CORP
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Filing: 1951-02-17
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Granted: 1955-08-23
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Expires: 1971-02-17
Abstract
No abstract record available.
Inventors
- 👤 Zeliey William Elwood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:02
CPC Classifications
B; B21; B21C; B21C1/00; B21C1/02; B21C1/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1281439A
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US1930246A
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US1916447A
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US2185416A
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US2237112A
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US2242435A
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US2315869A
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US2557215A
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US2567635A
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 |