US2787677A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical switching means for use with sewing machines
Assignee: S & W Sewing Machine Attachmen
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Filing: 1956-01-12
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Granted: 1957-04-02
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Expires: 1976-01-12
Abstract
No abstract record available.
Inventors
- 👤 Edward L Seaman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 01:00
CPC Classifications
D; D05; D05B; D05B69/00; D05B69/20; D05D; D05D2305/00; D05D2305/08; D05D2305/12; Y; Y10; Y10T; Y10T83/00; Y10T83/869; Y10T83/8798; Y10T83/8812
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) | 1960-04-01 | 1960-10-01 | 1961-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-01 | 1964-10-01 | 1965-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-01 | 1968-10-01 | 1969-04-02 | $7700.00 | Window Closed / Lapsed |