Patent US3715181A successfully refreshed from Google Patents.
US3715181A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel burner assembly
Assignee: KGI Inc
•
Filing: 1971-01-26
•
Granted: 1973-02-06
•
Expires: 1991-01-26
Abstract
Abstract A BURNER ASSEMBLY FOR THE COMBUSTION OF LIQUID FUEL WHEREIN A PLURALITY OF CIRCUMFERENTIALLY SPACED VANES ARE ADJUSTABLE TO CONTROL WHIRLING MOVEMENTOF SECONDARY AIR AND AN ASSEMBLY DESIGNED TO PREVENT CIRCUMFERENTIALLY MOVING AIR FROM MOVING INTO A REGENERATIVE TILE WHICH FORMS A PART OF THE ASSEMBLY.
Inventors
- 👤 J Zink
- 👤 R Reed
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:29
CPC Classifications
F; F23; F23C; F23C7/00; F23C7/002; F23C7/004; F23C7/006
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-02-06 | 1976-08-07 | 1977-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-06 | 1980-08-07 | 1981-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-06 | 1984-08-07 | 1985-02-06 | $7700.00 | Window Closed / Lapsed |