Patent US4117191A successfully refreshed from Google Patents.
Patent US2610064A successfully refreshed from Google Patents.
US2610064A
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Admission valve mechanism for resonance combustion chambers
Assignee: DANIEL AND FLORENCE GUGGENHEIM
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Filing: 1947-02-01
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Granted: 1952-09-09
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Expires: 1967-02-01
Abstract
No abstract record available.
Inventors
- 👤 Esther C Goddard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:46
CPC Classifications
F; F02; F02K; F02K7/00; F02K7/02; F02K7/06; F16; F16K; F16K15/00; F16K15/02; F16K15/03; F16K15/031; F16K15/035; F16K15/14; F16K15/16; F16K15/161; Y; Y10; Y10S; Y10S60/00; Y10S60/915; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7838; Y10T137/7839
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1743731A
Cited
US1599414A
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US1980266A
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US2267797A
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US2280757A
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US2328419A
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US2417270A
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US2505757A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-09 | 1956-03-10 | 1956-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-09 | 1960-03-10 | 1960-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-09 | 1964-03-10 | 1964-09-09 | $7700.00 | Window Closed / Lapsed |