US2696876A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flame failure control
Assignee: Sunoco Inc
•
Filing: 1950-07-14
•
Granted: 1954-12-14
•
Expires: 1970-07-14
Abstract
No abstract record available.
Inventors
- 👤 Charles A Hartung
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:28
CPC Classifications
F; F23; F23N; F23N5/00; F23N5/02; F23N5/14; F23N5/143
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2139504A
Cited
US2215805A
Cited
US2370847A
Cited
US2327690A
Cited
US2338786A
Cited
US2490534A
Cited
US2531887A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-12-13 | 1958-06-14 | 1958-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-13 | 1962-06-14 | 1962-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-13 | 1966-06-14 | 1966-12-14 | $7700.00 | Window Closed / Lapsed |