Patent US2770170A successfully refreshed from Google Patents.
US2770170A
Expired / Lapsed
US
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Hoist for projectiles
Assignee: Saab Bofors AB
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Filing: 1952-05-28
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Granted: 1956-11-13
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Expires: 1972-05-28
Abstract
No abstract record available.
Inventors
- 👤 Franson Erik Albin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:04
CPC Classifications
F; F41; F41A; F41A9/00; F41A9/01; F41A9/06; F41A9/09; F41A9/20; F41A9/21; F41A9/38; F41A9/45
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) | 1959-11-13 | 1960-05-14 | 1960-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-13 | 1964-05-14 | 1964-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-13 | 1968-05-14 | 1968-11-13 | $7700.00 | Window Closed / Lapsed |