US2726510A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flight-control apparatus involving steering combustion chambers
Assignee: DANIEL AND FLORENCE GUGGENHCIM
•
Filing: 1952-03-26
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Granted: 1955-12-13
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Expires: 1972-03-26
Abstract
No abstract record available.
Inventors
- 👤 Esther C Goddard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:22
CPC Classifications
F; F42; F42B; F42B10/00; F42B10/60; F42B10/66; F42B10/663
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US426300A
Cited
US1690043A
Cited
US2531761A
Cited
US2450950A
Cited
US2499401A
Cited
US2529508A
Cited
US2613497A
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 |