US2669090A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combustion chamber
Assignee: LANOVA Corp
•
Filing: 1951-01-13
•
Granted: 1954-02-16
•
Expires: 1971-01-13
Abstract
No abstract record available.
Inventors
- 👤 Robert J Jackson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:18
CPC Classifications
F; F23; F23R; F23R3/00; F23R3/02; F23R3/04; F02; F02C; F02C3/00; F02C3/34; F02C6/00; F02C6/04; F02C6/10; F02C6/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2159758A
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US2227666A
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US2216494A
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GB597205A
Cited
US2585968A
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US2446059A
Cited
US2525206A
Cited
US2458497A
Cited
US2448561A
Cited
US2457157A
Cited
US2545495A
Cited
US2605611A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-02-15 | 1957-08-17 | 1958-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-02-15 | 1961-08-17 | 1962-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-02-15 | 1965-08-17 | 1966-02-16 | $7700.00 | Window Closed / Lapsed |