US2522113A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for cooling powder-burning combustion chambers and nozzles
Assignee: DANIEL AND FLORENCE GUGGENHEIM
•
Filing: 1948-01-02
•
Granted: 1950-09-12
•
Expires: 1968-01-02
Abstract
No abstract record available.
Inventors
- 👤 Esther C Goddard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:41
CPC Classifications
F; F02; F02K; F02K9/00; F02K9/08; F02K9/32; F02K9/40; Y; Y10; Y10S; Y10S60/00; Y10S60/915; Y10S62/00; Y10S62/05
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-09-11 | 1954-03-13 | 1954-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-11 | 1958-03-13 | 1958-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-11 | 1962-03-13 | 1962-09-12 | $7700.00 | Window Closed / Lapsed |