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US2509215A
Expired / Lapsed
US
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Radiosonde
Assignee: United States, AS REPRESENTED BY SOCRETARY OF WAR
•
Filing: 1944-09-06
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Granted: 1950-05-30
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Expires: 1964-09-06
Abstract
No abstract record available.
Inventors
- 👤 Leo S Craig
- 👤 Hillman Leon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:18
CPC Classifications
G; G01; G01W; G01W1/00; G01W1/08
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) | 1953-05-29 | 1953-11-28 | 1954-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-29 | 1957-11-28 | 1958-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-29 | 1961-11-28 | 1962-05-30 | $7700.00 | Window Closed / Lapsed |