US2516489A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Jet propulsive means for aircraft employing boundary layer air or other air with gasturbine power plants
Assignee: Individual
•
Filing: 1948-01-16
•
Granted: 1950-07-25
•
Expires: 1968-01-16
Abstract
No abstract record available.
Inventors
- 👤 Edward A Stalker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:50
CPC Classifications
B; B64; B64C; B64C27/00; B64C27/32; B64C27/325; B64C27/04; B64C27/12; B64C27/16; B64C27/18; Y; Y10; Y10S; Y10S415/00; Y10S415/914
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE595915C
Cited
US1982969A
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US2041796A
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US2084464A
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US2092077A
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US2397357A
Cited
GB556866A
Cited
US2489683A
Cited
US2464651A
Cited
US2474359A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-24 | 1954-01-23 | 1954-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-24 | 1958-01-23 | 1958-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-24 | 1962-01-23 | 1962-07-25 | $7700.00 | Window Closed / Lapsed |