US2415086A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: National Aeronautics and Space Administration
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Filing: 1935-03-09
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Granted: 1947-02-04
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Expires: 1955-03-09
Abstract
No abstract record available.
Inventors
- 👤 Harold P Detwiler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:20
CPC Classifications
H; H01; H01H; H01H35/00; H01H35/14; F; F42; F42C; F42C19/00; F42C19/06; H01H35/141; H01H35/143
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-02-03 | 1950-08-05 | 1951-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-02-03 | 1954-08-05 | 1955-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-02-03 | 1958-08-05 | 1959-02-04 | $7700.00 | Window Closed / Lapsed |