US2487435A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel and water feeding and steam discharge arrangement for combustion chambers
Assignee: DANIEL AND FLORENCE GUGGENHEIM
•
Filing: 1948-02-07
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Granted: 1949-11-08
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Expires: 1968-02-07
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:30
CPC Classifications
F; F02; F02K; F02K9/00; F02K9/42; F02K9/44; F02K9/52; F02K9/60; F02K9/62; F02K9/64; Y; Y10; Y10S; Y10S165/00; Y10S165/907
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2016921A
Cited
US2405785A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-11-07 | 1953-05-09 | 1953-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-11-07 | 1957-05-09 | 1957-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-11-07 | 1961-05-09 | 1961-11-08 | $7700.00 | Window Closed / Lapsed |