US2605729A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thread-chain severing device for sewing machines
Assignee: Singer Co
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Filing: 1947-10-22
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Granted: 1952-08-05
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Expires: 1967-10-22
Abstract
No abstract record available.
Inventors
- 👤 John P Enos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:20
CPC Classifications
D; D05; D05B; D05B65/00; D05B57/00; D05B73/00; D05B73/04; D05B73/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-08-05 | 1956-02-04 | 1956-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-05 | 1960-02-04 | 1960-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-05 | 1964-02-04 | 1964-08-05 | $7700.00 | Window Closed / Lapsed |