US2659241A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Screw and nut mechanism
Assignee: EMI Ltd
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Filing: 1951-08-09
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Granted: 1953-11-17
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Expires: 1971-08-09
Abstract
No abstract record available.
Inventors
- 👤 Holman Herbert Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:21
CPC Classifications
H; H01; H01P; H01P7/00; H01P7/04; B; B44; B44B; B44B3/00; B44B3/04; F; F16; F16H; F16H25/00; F16H25/18; F16H25/20; F16H25/2003; F16H25/2006; G; G05; G05G; G05G23/00; B44B2700/00; B44B2700/02; B44B2700/025; G05G2700/00; G05G2700/02; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19642; Y10T74/19698; Y10T74/19702; Y10T74/19707; Y10T74/19949; Y10T74/19953
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) | 1956-11-16 | 1957-05-18 | 1957-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-16 | 1961-05-18 | 1961-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-16 | 1965-05-18 | 1965-11-17 | $7700.00 | Window Closed / Lapsed |