US2490729A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flash ignition and safety control
Assignee: —
•
Filing: —
•
Granted: 1949-12-06
•
Expires: 1966-12-06
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:48
CPC Classifications
F; F23; F23N; F23N5/00; F23N5/02; F23N5/10; F23N5/107
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2343904A
Cited
US1971704A
Cited
US1977150A
Cited
US1842334A
Cited
US2104298A
Cited
US2073966A
Cited
US2098192A
Cited
US2011090A
Cited
US1914805A
Cited
US2048065A
Cited
US2072552A
Cited
US2072034A
Cited
US2087433A
Cited
US2063834A
Cited
US2150415A
Cited
US2155880A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-12-05 | 1953-06-06 | 1953-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-12-05 | 1957-06-06 | 1957-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-12-05 | 1961-06-06 | 1961-12-06 | $7700.00 | Window Closed / Lapsed |