US2580207A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Jet pipe for jet-propelled aircraft
Assignee: Power Jets Research and Development Ltd
•
Filing: 1945-08-24
•
Granted: 1951-12-25
•
Expires: 1965-08-24
Abstract
No abstract record available.
Inventors
- 👤 Whittle Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 01:35
CPC Classifications
F; F02; F02K; F02K1/00; F02K1/78; F02K1/80
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US478496A
Cited
US518680A
Cited
US542864A
Cited
US279269A
Cited
US1143321A
Cited
US1441211A
Cited
GB138151A
Cited
US1347660A
Cited
US1458523A
Cited
US1705492A
Cited
US1938537A
Cited
US2293632A
Cited
US2375091A
Cited
US2473356A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-24 | 1955-06-25 | 1955-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-24 | 1959-06-25 | 1959-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-24 | 1963-06-25 | 1963-12-25 | $7700.00 | Window Closed / Lapsed |