US2609040A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combustion apparatus using compressed air
Assignee: Elliott Co
•
Filing: 1950-03-14
•
Granted: 1952-09-02
•
Expires: 1970-03-14
Abstract
No abstract record available.
Inventors
- 👤 Aronson David
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:05
CPC Classifications
F; F23; F23C; F23C7/00; F23C7/02; F23M; F23M5/00; F23M5/08; F23M5/085
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1857556A
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US1918397A
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US2268464A
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US2398654A
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US2396567A
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US2500925A
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US2483737A
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US2446059A
Cited
GB610641A
Cited
US2510645A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-02 | 1956-03-03 | 1956-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-02 | 1960-03-03 | 1960-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-02 | 1964-03-03 | 1964-09-02 | $7700.00 | Window Closed / Lapsed |