US2487588A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable area propulsive nozzle means for power plants
Assignee: Lockheed Martin Corp
•
Filing: 1945-03-10
•
Granted: 1949-11-08
•
Expires: 1965-03-10
Abstract
No abstract record available.
Inventors
- 👤 Nathan C Price
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:12
CPC Classifications
F; F02; F02K; F02K1/00; F02K1/36; F01; F01D; F01D25/00; F01D25/24; F01D5/00; F01D5/02; F01D5/08; F01D5/085; F01D5/12; F01D5/14; F01D5/18; F01D9/00; F01D9/02; F01D9/04; F01D9/042; F02C; F02C3/00; F02C3/04; F02C3/06; F02K1/06; F02K1/08; F02K1/09; 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)
DE310926C
Cited
US607548A
Cited
DE483888C
Cited
US658586A
Cited
US1555030A
Cited
US1422582A
Cited
US1493157A
Cited
US2356557A
Cited
US2346178A
Cited
US2390161A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-11-07 | 1953-05-09 | 1953-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-11-07 | 1957-05-09 | 1957-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-11-07 | 1961-05-09 | 1961-11-08 | $7700.00 | Window Closed / Lapsed |