US2659240A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic thrust balancing device
Assignee: Rolls Royce PLC
•
Filing: 1951-09-04
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Granted: 1953-11-17
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Expires: 1971-09-04
Abstract
No abstract record available.
Inventors
- 👤 Rubbra Arthur Alexander
- 👤 Haworth Lionel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:20
CPC Classifications
F; F16; F16C; F16C39/00; F16C39/04; G; G01; G01L; G01L3/00; G01L3/02; G01L3/14; G01L3/1464; G01L5/00; G01L5/12; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19628
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1272041A
Cited
US2225863A
Cited
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 |