US2814430A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air control gate for oil burner and the like
Assignee: Individual
•
Filing: 1953-08-12
•
Granted: 1957-11-26
•
Expires: 1973-08-12
Abstract
No abstract record available.
Inventors
- 👤 Reginald W Beckett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:25
CPC Classifications
F; F23; F23D; F23D11/00; F23D11/001
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US787039A
Cited
US960815A
Cited
FR20848E
Cited
US2075587A
Cited
US2236865A
Cited
US2215281A
Cited
US2478457A
Cited
US2599153A
Cited
US2645411A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-11-25 | 1961-05-27 | 1961-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-25 | 1965-05-27 | 1965-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-25 | 1969-05-27 | 1969-11-26 | $7700.00 | Window Closed / Lapsed |