US3020869A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Activated fin ship stabilizer
Assignee: Unisys Corp
•
Filing: 1959-08-12
•
Granted: 1962-02-13
•
Expires: 1979-08-12
Abstract
No abstract record available.
Inventors
- 👤 Lennox F Beach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 02:13
CPC Classifications
B; B63; B63B; B63B39/00; B63B39/06; G; G05; G05D; G05D1/00; G05D1/08; G05D1/0875
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2210935A
Cited
US2223562A
Cited
US2878772A
Cited
FR1153990A
Cited
FR1154259A
Cited
GB825134A
Cited
GB799795A
Cited
US2960959A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-12 | 1965-08-14 | 1966-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-12 | 1969-08-14 | 1970-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-12 | 1973-08-14 | 1974-02-13 | $7700.00 | Window Closed / Lapsed |