Patent FR1044741A successfully refreshed from Google Patents.
Patent US2970438A successfully refreshed from Google Patents.
US2970438A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circular fuel spray bars
Assignee: Curtiss Wright Corp
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Filing: 1958-03-04
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Granted: 1961-02-07
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Expires: 1978-03-04
Abstract
No abstract record available.
Inventors
- 👤 Werner E Howald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:06
CPC Classifications
F; F02; F02C; F02C7/00; F02C7/22; F02C7/222; F05; F05D; F05D2250/00; F05D2250/10; F05D2250/14; F05D2250/141
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1021067A
Cited
US2707372A
Cited
GB694448A
Cited
US2722803A
Cited
US2769547A
Cited
US2690648A
Cited
FR1126039A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-02-07 | 1964-08-08 | 1965-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-02-07 | 1968-08-08 | 1969-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-02-07 | 1972-08-08 | 1973-02-07 | $7700.00 | Window Closed / Lapsed |