Patent US2903909A successfully refreshed from Google Patents.
US2903909A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pitmans or links for sewing machine transmissions
Assignee: Individual
•
Filing: 1956-06-14
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Granted: 1959-09-15
•
Expires: 1976-06-14
Abstract
No abstract record available.
Inventors
- 👤 Engel Wolfgang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:17
CPC Classifications
F; F16; F16C; F16C7/00; F16C7/04; D; D05; D05B; D05B55/00; D05B55/14; D05D; D05D2209/00; D05D2209/08; F16C2340/00; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2142; Y10T74/2144; Y10T74/2153
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1885976A
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US1913513A
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US1956922A
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US2338323A
Cited
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Cited
US2532755A
Cited
US2580781A
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US2758481A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-14 | 1963-03-16 | 1963-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-14 | 1967-03-16 | 1967-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-14 | 1971-03-16 | 1971-09-15 | $7700.00 | Window Closed / Lapsed |