US2647364A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulse jet engine with spontaneously ignitable fuel and oxidizer
Assignee: MW Kellogg Co
•
Filing: 1948-09-10
•
Granted: 1953-08-04
•
Expires: 1968-09-10
Abstract
No abstract record available.
Inventors
- 👤 Logan L Dreibelbis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:25
CPC Classifications
F; F02; F02K; F02K7/00; F02K7/02; F02K7/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB190727724A
Cited
GB190802209A
Cited
US1036288A
Cited
US1415780A
Cited
GB176838A
Cited
DE630180C
Cited
GB522935A
Cited
US2489051A
Cited
US2480626A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-03 | 1957-02-02 | 1957-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-03 | 1961-02-02 | 1961-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-03 | 1965-02-02 | 1965-08-04 | $7700.00 | Window Closed / Lapsed |