US2726508A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aircraft propulsion units of the gas turbine jet type
Assignee: Bristol Siddeley Engines Ltd
•
Filing: 1952-02-25
•
Granted: 1955-12-13
•
Expires: 1972-02-25
Abstract
No abstract record available.
Inventors
- 👤 Halford Frank Bernard
- 👤 Moult Eric Stanley
- 👤 Arscott William Hammett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:53
CPC Classifications
F; F02; F02C; F02C6/00; F02C6/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2405919A
Cited
US2458600A
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US2446552A
Cited
US2575682A
Cited
US2464724A
Cited
US2423634A
Cited
GB611447A
Cited
US2548465A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-12-12 | 1959-06-13 | 1959-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-12 | 1963-06-13 | 1963-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-12 | 1967-06-13 | 1967-12-13 | $7700.00 | Window Closed / Lapsed |