US2739367A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Buckle-forming machine
Assignee: O&W Sewing Machine Attachments Inc
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Filing: 1954-06-04
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Granted: 1956-03-27
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Expires: 1974-06-04
Abstract
No abstract record available.
Inventors
- 👤 Ragnar W Winberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 01:52
CPC Classifications
B; B21; B21F; B21F1/00; B21F45/00; B21F45/16; B21F45/24; Y; Y10; Y10S; Y10S425/00; Y10S425/041; Y10T; Y10T156/00; Y10T156/19; Y10T156/1961; Y10T156/1967; Y10T156/1972; Y10T29/00; Y10T29/12; Y10T83/00; Y10T83/869; Y10T83/8798; Y10T83/8804; Y10T83/8805
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-03-27 | 1959-09-26 | 1960-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-27 | 1963-09-26 | 1964-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-27 | 1967-09-26 | 1968-03-27 | $7700.00 | Window Closed / Lapsed |