US2714866A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for propelling a ship
Assignee: Individual
•
Filing: 1951-02-19
•
Granted: 1955-08-09
•
Expires: 1971-02-19
Abstract
No abstract record available.
Inventors
- 👤 Friedrich W Pleuger
- 👤 Friedrich F Busmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:15
CPC Classifications
B; B63; B63H; B63H5/00; B63H5/07; B63H5/16; B63H23/00; B63H23/22; B63H23/24; B63H25/00; B63H25/42; B63H5/125; B63H2005/1254; B63H2005/1258
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1216242A
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US1269909A
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US1652504A
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GB314362A
Cited
US2030375A
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US2116146A
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DE688114C
Cited
US2213610A
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FR861754A
Cited
US2598547A
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US2568548A
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US2566525A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-08-08 | 1959-02-07 | 1959-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-08-08 | 1963-02-07 | 1963-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-08-08 | 1967-02-07 | 1967-08-09 | $7700.00 | Window Closed / Lapsed |