Patent US2499339A successfully refreshed from Google Patents.
US2499339A
Expired / Lapsed
US
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Outboard propeller mechanism for boats
Assignee: Murray & Tregurtha Inc
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Filing: 1944-11-20
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Granted: 1950-02-28
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Expires: 1964-11-20
Abstract
No abstract record available.
Inventors
- 👤 Arthur W Wanzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:26
CPC Classifications
B; B63; B63H; B63H20/00; B63H20/14; B63H20/16; B63H20/32; B63H20/08; B63H20/12; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19535
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) | 1953-02-27 | 1953-08-29 | 1954-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-27 | 1957-08-29 | 1958-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-27 | 1961-08-29 | 1962-02-28 | $7700.00 | Window Closed / Lapsed |