US2806441A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for stabilizing and maneuvering submarines
Assignee: Individual
•
Filing: 1952-05-15
•
Granted: 1957-09-17
•
Expires: 1972-05-15
Abstract
No abstract record available.
Inventors
- 👤 Jr Harry H Hoke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:04
CPC Classifications
B; B63; B63H; B63H25/00; B63H25/42; B63G; B63G8/00; B63G8/14; B63G8/16; B63H1/00; B63H1/02; B63H1/12; B63H2001/122
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2294A
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US678290A
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US860126A
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US1541186A
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FR669688A
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US2123358A
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US2291940A
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GB567567A
Cited
US2611064A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-16 | 1961-03-18 | 1961-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-16 | 1965-03-18 | 1965-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-16 | 1969-03-18 | 1969-09-17 | $7700.00 | Window Closed / Lapsed |