US3018624A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flame tubes for use in combustion systems of gas turbine engines
Assignee: Bristol Siddeley Engines Ltd
•
Filing: 1955-02-28
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Granted: 1962-01-30
•
Expires: 1975-02-28
Abstract
No abstract record available.
Inventors
- 👤 Bonsall Frank
- 👤 Massey Bernard Sidney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:30
CPC Classifications
F; F23; F23R; F23R3/00; F23R3/42; F23R3/46; F01; F01D; F01D9/00; F01D9/02; F01D9/023; F01D9/04; F01D9/041; F23R3/02; F23R3/04; F23R3/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-29 | 1965-07-31 | 1966-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-29 | 1969-07-31 | 1970-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-29 | 1973-07-31 | 1974-01-30 | $7700.00 | Window Closed / Lapsed |