Patent US3477399A successfully refreshed from Google Patents.
US3477399A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Switching device for a sewing machine
Assignee: QUICK ROTAN BECKER AND CO
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Filing: 1969-02-19
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Granted: 1969-11-11
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Expires: 1989-02-19
Abstract
No abstract record available.
Inventors
- 👤 Ernst Becker
- 👤 Karl Notz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:07
CPC Classifications
D; D05; D05B; D05B69/00; D05B69/22; D05B69/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2520709A
Cited
US2749397A
Cited
US2961591A
Cited
US3182140A
Cited
US3078356A
Cited
US3204592A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-10 | 1973-05-12 | 1973-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-10 | 1977-05-12 | 1977-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-10 | 1981-05-12 | 1981-11-11 | $7700.00 | Window Closed / Lapsed |