Patent US2658337A successfully refreshed from Google Patents.
US2658337A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combustion chamber for prime movers
Assignee: ZF International UK Ltd
•
Filing: 1948-12-14
•
Granted: 1953-11-10
•
Expires: 1968-12-14
Abstract
No abstract record available.
Inventors
- 👤 Clarke John Stanley
- 👤 Huyton Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:57
CPC Classifications
F; F23; F23R; F23R3/00; F23R3/02; F23R3/04; F23R3/06; F23R3/08
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2268464A
Cited
US2446059A
Cited
US2525206A
Cited
US2448561A
Cited
US2573694A
Cited
US2477584A
Cited
US2537033A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-09 | 1957-05-11 | 1957-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-09 | 1961-05-11 | 1961-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-09 | 1965-05-11 | 1965-11-10 | $7700.00 | Window Closed / Lapsed |