US2946437A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extrusion of metal billets
Assignee: Babcock and Wilcox Co
•
Filing: 1955-05-31
•
Granted: 1960-07-26
•
Expires: 1975-05-31
Abstract
No abstract record available.
Inventors
- 👤 David A Edgecombe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:28
CPC Classifications
B; B21; B21C; B21C23/00; B21C23/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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GB607285A
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US2630220A
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US2706850A
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FR1015762A
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US2806596A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-26 | 1964-01-25 | 1964-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-26 | 1968-01-25 | 1968-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-26 | 1972-01-25 | 1972-07-26 | $7700.00 | Window Closed / Lapsed |