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US2952378A
Expired / Lapsed
US
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Capsule or gondola used in high altitude research
Assignee: Individual
•
Filing: 1956-06-25
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Granted: 1960-09-13
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Expires: 1976-06-25
Abstract
No abstract record available.
Inventors
- 👤 Leonard C Renslow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:21
CPC Classifications
B; B64; B64B; B64B1/00; B64B1/58; B64B1/60; F; F16; F16J; F16J13/00; F16J13/02; F16J13/06; F16J13/065
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2280501A
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US2410323A
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US2525469A
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GB689628A
Cited
US2659222A
Cited
US2737309A
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US2749266A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-13 | 1964-03-14 | 1964-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-13 | 1968-03-14 | 1968-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-13 | 1972-03-14 | 1972-09-13 | $7700.00 | Window Closed / Lapsed |