US2920445A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flame holder apparatus
Assignee: Curtiss Wright Corp
•
Filing: 1957-01-15
•
Granted: 1960-01-12
•
Expires: 1977-01-15
Abstract
No abstract record available.
Inventors
- 👤 Frank W Bailey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:43
CPC Classifications
F; F23; F23R; F23R3/00; F23R3/02; F23R3/16; F23R3/18; F23R3/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2734341A
Cited
US1474867A
Cited
US2622396A
Cited
GB702760A
Cited
US2771743A
Cited
US2780916A
Cited
FR1085458A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-11 | 1963-07-13 | 1964-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-11 | 1967-07-13 | 1968-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-11 | 1971-07-13 | 1972-01-12 | $7700.00 | Window Closed / Lapsed |