US3381655A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rescue balloon
Assignee: Individual
•
Filing: 1966-07-07
•
Granted: 1968-05-07
•
Expires: 1986-07-07
Abstract
No abstract record available.
Inventors
- 👤 Donald G Rozzelle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:49
CPC Classifications
F; F16; F16K; F16K15/00; F16K15/20; B; B64; B64B; B64B1/00; B64B1/58; B64B1/62; G; G08; G08B; G08B5/00; G08B5/002; Y; Y10; Y10S; Y10S116/00; Y10S116/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1783605A
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US1836495A
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US2172311A
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US2498596A
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US2575908A
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US2719507A
Cited
US2865410A
Cited
US3002490A
Cited
US3029981A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-07 | 1971-11-06 | 1972-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-07 | 1975-11-06 | 1976-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-07 | 1979-11-06 | 1980-05-07 | $7700.00 | Window Closed / Lapsed |