US2500712A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple combustion unit pulse jet engine
Assignee: Individual
•
Filing: 1946-03-05
•
Granted: 1950-03-14
•
Expires: 1966-03-05
Abstract
No abstract record available.
Inventors
- 👤 Serrell Jesse Pound
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:29
CPC Classifications
F; F02; F02K; F02K7/00; F02K7/02; F02K7/075; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
FR345486A
Cited
US1375601A
Cited
US1369672A
Cited
DE459637C
Cited
GB299420A
Cited
US1739255A
Cited
US1856552A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-03-13 | 1953-09-12 | 1954-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-03-13 | 1957-09-12 | 1958-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-03-13 | 1961-09-12 | 1962-03-14 | $7700.00 | Window Closed / Lapsed |