US3240433A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Burner construction having casing with tangentially arranged air inlet and swirl chambers
Assignee: Eclipse Fuel Engineering Co
•
Filing: 1963-04-08
•
Granted: 1966-03-15
•
Expires: 1983-04-08
Abstract
No abstract record available.
Inventors
- 👤 James P Keating
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:23
CPC Classifications
F; F23; F23D; F23D14/00; F23D14/20; F23D14/22; F23D14/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB178509A
Cited
US2215272A
Cited
US2433317A
Cited
US2456930A
Cited
US2500344A
Cited
US2796118A
Cited
US3088681A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-14 | 1969-09-13 | 1970-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-14 | 1973-09-13 | 1974-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-14 | 1977-09-13 | 1978-03-15 | $7700.00 | Window Closed / Lapsed |