Patent US2774629A successfully refreshed from Google Patents.
US2774629A
Expired / Lapsed
US
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Variable area fuel nozzles
Assignee: Northrop Grumman Space and Mission Systems Corp
•
Filing: 1950-09-08
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Granted: 1956-12-18
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Expires: 1970-09-08
Abstract
No abstract record available.
Inventors
- 👤 Noon T Cyril
- 👤 Frank C Bayer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:49
CPC Classifications
F; F23; F23D; F23D11/00; F23D11/24; F23D11/26
Claims Analysis
Total Claims: 0
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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) | 1959-12-18 | 1960-06-18 | 1960-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-18 | 1964-06-18 | 1964-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-18 | 1968-06-18 | 1968-12-18 | $7700.00 | Window Closed / Lapsed |