Patent US2740136A successfully refreshed from Google Patents.
US2740136A
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US
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Method of producing blanks for roll threaded screws and the like by a combined forging and drawing action
Assignee: BULLONERIA E VITERIE ITALIANA
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Filing: 1951-02-24
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Granted: 1956-04-03
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Expires: 1971-02-24
Abstract
No abstract record available.
Inventors
- 👤 Chiaberta Serafino
- 👤 Chiaberta Pio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:16
CPC Classifications
B; B21; B21G; B21G3/00; B21G3/18; B21G3/20; B21C; B21C1/00; B21C1/16; B21C1/20; B21K; B21K1/00; B21K1/44; B21K1/46; B21K1/56
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1205173A
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US1652073A
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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) | 1959-04-03 | 1959-10-03 | 1960-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-03 | 1963-10-03 | 1964-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-03 | 1967-10-03 | 1968-04-03 | $7700.00 | Window Closed / Lapsed |