US2952378A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Capsule or gondola used in high altitude research
Assignee: Individual
•
Filing: 1956-06-25
•
Granted: 1960-09-13
•
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
2026-10-29 08:39
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
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US261086A
Cited
US549220A
Cited
US1059159A
Cited
US1966241A
Cited
US2280501A
Cited
US2410323A
Cited
US2525469A
Cited
GB689628A
Cited
US2659222A
Cited
US2737309A
Cited
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 |