US3697231A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Burner assembly for flare stack
Assignee: KGI Inc
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Filing: 1970-12-23
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Granted: 1972-10-10
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Expires: 1990-12-23
Abstract
Abstract A BURNER ASSEMBLY FOR THE UPPER END OF A FLARE STACK DESIGNED FOR THE COMBUSTION OF GASES AT SIGNIFICANT ELEVATIONS ABOVE THE SURROUNDING TERRAIN WHEREIN A SMOKE SUPPRESSANT IS THOROUGHLY MIXED WITH THE GAS PRIOR TO THE BURNING REACTIONS AND TO A STRUCTURAL ARRANGEMENT WHICH DISTRIBUTES THE SMOKE SUPPRRESSANT IN VOLUMES PROPORTIONAL TO THE QUANTITY OF THE GASES TO BE BURNED.
Inventors
- 👤 Robert D Reed
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:09
CPC Classifications
F; F23; F23G; F23G7/00; F23G7/06; F23G7/08
Claims Analysis
Total Claims: 0
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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) | 1975-10-10 | 1976-04-10 | 1976-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-10 | 1980-04-10 | 1980-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-10 | 1984-04-10 | 1984-10-10 | $7700.00 | Window Closed / Lapsed |