US2554092A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for heating a fluid by means of solid fuel
Assignee: Individual
•
Filing: 1945-09-18
•
Granted: 1951-05-22
•
Expires: 1965-09-18
Abstract
No abstract record available.
Inventors
- 👤 Poray Marcel Cyprien Kuczew De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:08
CPC Classifications
F; F23; F23B; F23B80/00; F23B10/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US32731A
Cited
US568167A
Cited
US1029908A
Cited
US1296194A
Cited
US1488531A
Cited
US1734310A
Cited
US1903313A
Cited
US1963358A
Cited
US1943622A
Cited
US1995185A
Cited
US1980424A
Cited
US2145565A
Cited
US2244800A
Cited
US2264226A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-21 | 1954-11-20 | 1955-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-21 | 1958-11-20 | 1959-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-21 | 1962-11-20 | 1963-05-22 | $7700.00 | Window Closed / Lapsed |