US3025809A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic ornamental stitch sewing mechanisms
Assignee: Singer Co
•
Filing: 1959-01-02
•
Granted: 1962-03-20
•
Expires: 1979-01-02
Abstract
No abstract record available.
Inventors
- 👤 Waldemar A Ayres
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:37
CPC Classifications
D; D05; D05B; D05B19/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2050039A
Cited
US2038675A
Cited
US2854935A
Cited
US2810360A
Cited
US2788757A
Cited
FR1147123A
Cited
US2900837A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-03-19 | 1965-09-18 | 1966-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-19 | 1969-09-18 | 1970-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-19 | 1973-09-18 | 1974-03-20 | $7700.00 | Window Closed / Lapsed |