Patent US2856755A successfully refreshed from Google Patents.
US2856755A
Expired / Lapsed
US
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Combustion chamber with diverse combustion and diluent air paths
Assignee: Individual
•
Filing: 1953-10-19
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Granted: 1958-10-21
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Expires: 1973-10-19
Abstract
No abstract record available.
Inventors
- 👤 Szydlowski Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:25
CPC Classifications
F; F23; F23R; F23R3/00; F23R3/28; F23R3/38
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-20 | 1962-04-21 | 1962-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-20 | 1966-04-21 | 1966-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-20 | 1970-04-21 | 1970-10-21 | $7700.00 | Window Closed / Lapsed |