Patent US2983531A successfully refreshed from Google Patents.
US2983531A
Expired / Lapsed
US
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Means for automatic locking and releasing rechangeable work guiding cams in zig-zag sewing-machines
Assignee: Borletti SpA
•
Filing: 1956-11-30
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Granted: 1961-05-09
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Expires: 1976-11-30
Abstract
No abstract record available.
Inventors
- 👤 Moro Antouio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:08
CPC Classifications
D; D05; D05B; D05B19/00; Y; Y10; Y10T; Y10T403/00; Y10T403/46
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US173126A
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US285303A
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US505490A
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US653397A
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US812784A
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US2116735A
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US2251470A
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GB557113A
Cited
FR992267A
Cited
US2652989A
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US2615643A
Cited
US2617165A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-08 | 1964-11-07 | 1965-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-08 | 1968-11-07 | 1969-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-08 | 1972-11-07 | 1973-05-09 | $7700.00 | Window Closed / Lapsed |