US3249237A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aerial hoisting apparatus for use in balloon logging
Assignee: Individual
•
Filing: 1964-03-31
•
Granted: 1966-05-03
•
Expires: 1984-03-31
Abstract
No abstract record available.
Inventors
- 👤 Faye H Stewart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:15
CPC Classifications
B; B64; B64B; B64B1/00; B64B1/40; B66; B66C; B66C21/00; B66C2700/00; B66C2700/01; B66C2700/011
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US852204A
Cited
US1530244A
Cited
US1789472A
Cited
US2141469A
Cited
US3022747A
Cited
US3221897A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-02 | 1969-11-01 | 1970-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-02 | 1973-11-01 | 1974-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-02 | 1977-11-01 | 1978-05-03 | $7700.00 | Window Closed / Lapsed |