Patent US2583128A successfully refreshed from Google Patents.
US2583128A
Expired / Lapsed
US
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Dual electrode tuning units for electric bonding machines
Assignee: Singer Co
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Filing: 1947-01-21
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Granted: 1952-01-22
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Expires: 1967-01-21
Abstract
No abstract record available.
Inventors
- 👤 Robert L Stevenson
- 👤 John A Herr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:40
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/46; H05B6/48
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2333412A
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US2397615A
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US2308043A
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US2440081A
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US2401277A
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US2470443A
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US2432412A
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US2473041A
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US2458684A
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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) | 1955-01-21 | 1955-07-23 | 1956-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-21 | 1959-07-23 | 1960-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-21 | 1963-07-23 | 1964-01-22 | $7700.00 | Window Closed / Lapsed |