US2481129A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Screw and nut actuator
Assignee: Keppel LeTourneau USA Inc
•
Filing: 1944-11-16
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Granted: 1949-09-06
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Expires: 1964-11-16
Abstract
No abstract record available.
Inventors
- 👤 Tourneau Robert G Le
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:06
CPC Classifications
F; F16; F16H; F16H25/00; F16H25/18; F16H25/20; F16H37/00; F16H37/12; F16H2025/2062; F16H2025/2081; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19642; Y10T74/19698; Y10T74/19702; Y10T74/19721
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US801012A
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US1401580A
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US1473140A
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US1847693A
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US2311972A
Cited
US2328897A
Cited
US2403092A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-09-05 | 1953-03-07 | 1953-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-09-05 | 1957-03-07 | 1957-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-09-05 | 1961-03-07 | 1961-09-06 | $7700.00 | Window Closed / Lapsed |