US2897885A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid fuel burner
Assignee: Silent Glow Oil Burner Corp
•
Filing: 1954-06-29
•
Granted: 1959-08-04
•
Expires: 1974-06-29
Abstract
No abstract record available.
Inventors
- 👤 Rallston M Sherman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:28
CPC Classifications
F; F23; F23D; F23D11/00; F23D11/001
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2172667A
Cited
US829404A
Cited
US874329A
Cited
US1023090A
Cited
US2250806A
Cited
US2210366A
Cited
US2298745A
Cited
US2446744A
Cited
US2500344A
Cited
US2469272A
Cited
US2460370A
Cited
US2599153A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-03 | 1963-02-02 | 1963-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-03 | 1967-02-02 | 1967-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-03 | 1971-02-02 | 1971-08-04 | $7700.00 | Window Closed / Lapsed |