US2594765A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resonance combustion apparatus
Assignee: DANIEL AND FLORENCE GUGGENHEIM
•
Filing: 1945-10-06
•
Granted: 1952-04-29
•
Expires: 1965-10-06
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:30
CPC Classifications
F; F02; F02K; F02K7/00; F02K7/02; F02K7/06; Y; Y10; Y10S; Y10S60/00; Y10S60/915
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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FR412478A
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US978044A
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AT67969B
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DE387166C
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US1934944A
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US1980266A
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US2102559A
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US2069938A
Cited
US2096184A
Cited
US2176021A
Cited
GB467630A
Cited
FR844442A
Cited
US2403797A
Cited
US2397357A
Cited
US2403388A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-29 | 1955-10-29 | 1956-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-29 | 1959-10-29 | 1960-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-29 | 1963-10-29 | 1964-04-29 | $7700.00 | Window Closed / Lapsed |