US2756703A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Zigzag sewing machines
Assignee: Singer Co
•
Filing: 1953-10-19
•
Granted: 1956-07-31
•
Expires: 1973-10-19
Abstract
No abstract record available.
Inventors
- 👤 Martin R Perla
- 👤 Edward L Koenig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:44
CPC Classifications
D; D05; D05B; D05B19/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1551453A
Cited
GB190907213A
Cited
US986354A
Cited
US1512738A
Cited
US2014916A
Cited
US2134417A
Cited
US2297197A
Cited
US2653557A
Cited
US2664058A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-07-31 | 1960-01-30 | 1960-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-31 | 1964-01-30 | 1964-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-31 | 1968-01-30 | 1968-07-31 | $7700.00 | Window Closed / Lapsed |