US2964907A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combustion stabilising device for combustion equipment
Assignee: Rolls Royce PLC
•
Filing: 1958-11-10
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Granted: 1960-12-20
•
Expires: 1978-11-10
Abstract
No abstract record available.
Inventors
- 👤 Toone Brian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:48
CPC Classifications
F; F23; F23R; F23R3/00; F23R3/02; F23R3/16; F23R3/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR386320A
Cited
GB696756A
Cited
GB706698A
Cited
US2872785A
Cited
GB735570A
Cited
US2780916A
Cited
GB753175A
Cited
FR1161852A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-20 | 1964-06-20 | 1964-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-20 | 1968-06-20 | 1968-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-20 | 1972-06-20 | 1972-12-20 | $7700.00 | Window Closed / Lapsed |