US2923348A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel combustion apparatus
Assignee: Individual
•
Filing: 1958-04-24
•
Granted: 1960-02-02
•
Expires: 1978-04-24
Abstract
No abstract record available.
Inventors
- 👤 Reginald P Fraser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:42
CPC Classifications
F; F23; F23C; F23C7/00; F23C7/02; F23C3/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE376570C
Cited
US2367119A
Cited
US2638895A
Cited
US2603064A
Cited
US2541171A
Cited
US2601000A
Cited
US2536599A
Cited
US2712351A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-02-01 | 1963-08-03 | 1964-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-01 | 1967-08-03 | 1968-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-01 | 1971-08-03 | 1972-02-02 | $7700.00 | Window Closed / Lapsed |