US3056258A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aircraft propulsion power units
Assignee: Bristol Siddeley Engines Ltd
•
Filing: 1961-01-24
•
Granted: 1962-10-02
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Expires: 1981-01-24
Abstract
No abstract record available.
Inventors
- 👤 Marchant Francis Charles Ivor
- 👤 Batchelor Percy George
- 👤 Jagaard Robert William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:08
CPC Classifications
B; B64; B64C; B64C29/00; B64C29/0008; B64C29/0041; B64C29/0066; F; F02; F02C; F02C3/00; F02C3/04; F02C3/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2601104A
Cited
US2664700A
Cited
US2928238A
Cited
US2912188A
Cited
US2986877A
Cited
US2919546A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-01 | 1966-04-02 | 1966-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-01 | 1970-04-02 | 1970-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-01 | 1974-04-02 | 1974-10-02 | $7700.00 | Window Closed / Lapsed |