Patent US2620759A successfully refreshed from Google Patents.
US2620759A
Expired / Lapsed
US
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Machine used in the making of piped buttonholes
Assignee: FISCHBEIN
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Filing: 1950-10-16
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Granted: 1952-12-09
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Expires: 1970-10-16
Abstract
No abstract record available.
Inventors
- 👤 Pantusco Frank
- 👤 Fischbein David
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:47
CPC Classifications
D; D05; D05B; D05B3/00; D05B3/10; D05D; D05D2303/00; D05D2303/02; D05D2303/20
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) | 1955-12-09 | 1956-06-09 | 1956-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-09 | 1960-06-09 | 1960-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-09 | 1964-06-09 | 1964-12-09 | $7700.00 | Window Closed / Lapsed |