US2915913A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Leadscrew locking devices
Assignee: English Electric Co Ltd
•
Filing: 1958-03-24
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Granted: 1959-12-08
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Expires: 1978-03-24
Abstract
No abstract record available.
Inventors
- 👤 Molyneux John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:04
CPC Classifications
H; H01; H01H; H01H3/00; H01H3/32; H01H3/40; F; F16; F16H; F16H25/00; F16H25/18; F16H25/20; F16H25/24; F16H25/2454; G; G05; G05G; G05G5/00; G05G5/06; G05G2700/00; G05G2700/04; G05G2700/08; H01H2003/405; Y; Y10; Y10S; Y10S411/00; Y10S411/924; Y10S411/929; Y10S411/94; Y10T; Y10T70/00; Y10T70/50; Y10T70/5611; Y10T70/5646; Y10T70/565; Y10T70/5655; Y10T74/00; Y10T74/18; Y10T74/18568; Y10T74/18576; Y10T74/18648; Y10T74/18688; Y10T74/18704
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) | 1962-12-07 | 1963-06-08 | 1963-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-07 | 1967-06-08 | 1967-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-07 | 1971-06-08 | 1971-12-08 | $7700.00 | Window Closed / Lapsed |