USRE27507E
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flare stack combustion tip
Assignee: —
•
Filing: 1971-05-13
•
Granted: 1972-10-10
•
Expires: 1991-05-13
Abstract
Abstract A FLARE STACK COMBUSTION TIP HAVING A CENTRALLY DISPOSED GAS CONDUIT HAVING AN OPENING IN THE LOWER END THEREOF FOR COMMUNICATION WITH A FLARE STACK AND THE UPPER END THEREOF BEING AT LEAST PARTIALLY CLOSED, A PLURALITY OF SPACED APART GAS CONDUCTING CHANNELS EXTENDING OUTWARD FROM SAID GAS CONDUIT AND IN OPEN COMMUNICATION ALONG ONE END THEREOF WITH SAID GAS CONDUIT, AND A GAS EMISSION ORIFICE IN AN UPPER SEGMENT OF EACH OF SAID GAS CONDUCTING CHANNELS AND EXTENDING SUBSTANTIALLY THE ENTIRE LENGTH OF SAID UPPER SEGMENT, SAID GAS EMISSION ORIFICES BEING DISPOSED RADIALLY WITH RESPECT TO THE AXIS OF SAID GAS CONDUIT.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:07
CPC Classifications
F; F23; F23G; F23G7/00; F23G7/06; F23G7/08; F23G7/085
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 |