US2667740A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for supplying and cooling rocket type combustion chambers
Assignee: DANIEL AND FLORENCE GUGGENHEIM
•
Filing: 1950-06-06
•
Granted: 1954-02-02
•
Expires: 1970-06-06
Abstract
No abstract record available.
Inventors
- 👤 Esther C Goddard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:50
CPC Classifications
F; F02; F02K; F02K9/00; F02K9/42; F02K9/60; F02K9/62; F02K9/64; F02K9/44; F02K9/52
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1451063A
Cited
US1790927A
Cited
US1989164A
Cited
US2064914A
Cited
US1995934A
Cited
US2183313A
Cited
US2395403A
Cited
US2565039A
Cited
GB617578A
Cited
US2515645A
Cited
US2536600A
Cited
US2561795A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-02-01 | 1957-08-03 | 1958-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-02-01 | 1961-08-03 | 1962-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-02-01 | 1965-08-03 | 1966-02-02 | $7700.00 | Window Closed / Lapsed |