US2828609A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combustion chambers including suddenly enlarged chamber portions
Assignee: Bristol Aero Engines Ltd
•
Filing: 1951-03-26
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Granted: 1958-04-01
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Expires: 1971-03-26
Abstract
No abstract record available.
Inventors
- 👤 Ogilvie Ian Bruce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:40
CPC Classifications
F; F23; F23R; F23R3/00; F23R3/28; F23R3/38; F02; F02C; F02C7/00; F02C7/22; F02K; F02K7/00; F02K7/10; F23R3/30; F23R3/34; F23R3/36
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2450535A
Cited
US2405785A
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US2546432A
Cited
CH266196A
Cited
US2658566A
Cited
US2417445A
Cited
US2551112A
Cited
US2551114A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-31 | 1961-09-30 | 1962-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-31 | 1965-09-30 | 1966-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-31 | 1969-09-30 | 1970-04-01 | $7700.00 | Window Closed / Lapsed |