US2597912A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shank button feeder for button sewing machines
Assignee: EMSIG Manufacturing CO
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Filing: 1948-10-04
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Granted: 1952-05-27
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Expires: 1968-10-04
Abstract
No abstract record available.
Inventors
- 👤 William A Troll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:44
CPC Classifications
D; D05; D05B; D05B3/00; D05B3/12; D05B3/22; B; B65; B65G; B65G47/00; B65G47/02; B65G47/04; B65G47/12; B65G47/14; B65G47/1407; B65G47/1442; B65G47/1457; D05B73/00; D05B73/04; D05B73/12; D05D; D05D2303/00; D05D2303/12; D05D2303/14; D05D2303/16
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) | 1955-05-27 | 1955-11-26 | 1956-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-27 | 1959-11-26 | 1960-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-27 | 1963-11-26 | 1964-05-27 | $7700.00 | Window Closed / Lapsed |