US2587649A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Selective turbopropeller jet power plant for aircraft
Assignee: Individual
•
Filing: 1946-10-18
•
Granted: 1952-03-04
•
Expires: 1966-10-18
Abstract
No abstract record available.
Inventors
- 👤 Pope Francis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:34
CPC Classifications
F; F02; F02C; F02C9/00; F02C9/16; F02C3/00; F02C3/04; F02C3/06; F02C6/00; F02C6/20; F02C6/206; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1959795A
Cited
US2280835A
Cited
US2243467A
Cited
GB541307A
Cited
GB562251A
Cited
US2409176A
Cited
GB576094A
Cited
US2435836A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-03-04 | 1955-09-03 | 1956-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-04 | 1959-09-03 | 1960-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-04 | 1963-09-03 | 1964-03-04 | $7700.00 | Window Closed / Lapsed |