US2425589A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel pressure responsive burner control system
Assignee: Individual
•
Filing: 1941-08-25
•
Granted: 1947-08-12
•
Expires: 1961-08-25
Abstract
No abstract record available.
Inventors
- 👤 Fred B Aubert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:35
CPC Classifications
F; F23; F23N; F23N5/00; F23N5/02; F23N5/08; F23N5/082
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1679163A
Cited
US1761018A
Cited
US1818616A
Cited
GB298146A
Cited
US1899744A
Cited
US1877248A
Cited
US1963771A
Cited
US1936784A
Cited
US2112736A
Cited
US2136256A
Cited
US2343001A
Cited
US2175017A
Cited
US2253307A
Cited
US2304200A
Cited
US2261458A
Cited
US2299501A
Cited
US2274384A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-08-11 | 1951-02-10 | 1951-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-08-11 | 1955-02-10 | 1955-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-08-11 | 1959-02-10 | 1959-08-12 | $7700.00 | Window Closed / Lapsed |