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US2720241A
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US
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Bead forming machine for barrel drums
Assignee: CARANDO MACHINE WORKS
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Filing: 1952-10-10
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Granted: 1955-10-11
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Expires: 1972-10-10
Abstract
No abstract record available.
Inventors
- 👤 Joseph P Calcaterra
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:35
CPC Classifications
B; B21; B21D; B21D17/00; B21D17/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US239402A
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US313205A
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US1039555A
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US1952857A
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US2004816A
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US2089475A
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US2211009A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-10-10 | 1959-04-11 | 1959-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-10 | 1963-04-11 | 1963-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-10 | 1967-04-11 | 1967-10-11 | $7700.00 | Window Closed / Lapsed |