US2480459A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel burning apparatus wherein air is supplied in one or more streams of elongated cross section
Assignee: Babcock and Wilcox Co
•
Filing: 1944-12-08
•
Granted: 1949-08-30
•
Expires: 1964-12-08
Abstract
No abstract record available.
Inventors
- 👤 Fletcher James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:50
CPC Classifications
F; F23; F23D; F23D11/00; F23D11/10; F23D11/101; F23D11/104
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2229068A
Cited
US1922857A
Cited
US2044720A
Cited
US2119580A
Cited
US2186804A
Cited
US2240250A
Cited
US2283658A
Cited
US2342228A
Cited
US2397793A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-08-29 | 1953-02-28 | 1953-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-29 | 1957-02-28 | 1957-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-29 | 1961-02-28 | 1961-08-30 | $7700.00 | Window Closed / Lapsed |