US2532709A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid cooled baffles between mixing and combustion chambers
Assignee: DANIEL AND FLORENCE GUGGENHEIM
•
Filing: 1946-11-30
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Granted: 1950-12-05
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Expires: 1966-11-30
Abstract
No abstract record available.
Inventors
- 👤 Esther C Goddard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:34
CPC Classifications
F; F02; F02K; F02K9/00; F02K9/42; F02K9/44; F02K9/52; F02K9/60; F02K9/62; F02K9/64; Y; Y10; Y10S; Y10S60/00; Y10S60/915
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR378868A
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US985793A
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US1879186A
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US2107365A
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US2168313A
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US2417835A
Cited
US2332866A
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US2224472A
Cited
US2396567A
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US2405465A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-12-04 | 1954-06-05 | 1954-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-04 | 1958-06-05 | 1958-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-04 | 1962-06-05 | 1962-12-05 | $7700.00 | Window Closed / Lapsed |