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US3061093A
Expired / Lapsed
US
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Method of scalping billet during extrusion
Assignee: Babcock and Wilcox Co
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Filing: 1959-04-21
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Granted: 1962-10-30
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Expires: 1979-04-21
Abstract
No abstract record available.
Inventors
- 👤 David A Edgecombe
- 👤 William R Walker
- 👤 Clark P Church
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:16
CPC Classifications
B; B21; B21C; B21C23/00; B21C23/02; B21C23/04; B21C23/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2538917A
Cited
US2337804A
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US2773593A
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US2832468A
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FR1148824A
Cited
US2946437A
Cited
GB781737A
Cited
US2798286A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-29 | 1966-04-30 | 1966-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-29 | 1970-04-30 | 1970-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-29 | 1974-04-30 | 1974-10-30 | $7700.00 | Window Closed / Lapsed |