Patent US2546956A successfully refreshed from Google Patents.
US2546956A
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Submersible buoy
Assignee: MARTHA F WATTS
•
Filing: 1944-10-06
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Granted: 1951-03-27
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Expires: 1964-10-06
Abstract
No abstract record available.
Inventors
- 👤 Lucien I Yeomans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:35
CPC Classifications
B; B63; B63G; B63G9/00; B63G9/02; B63G9/04; B63B; B63B22/00; B63B22/04; B63B22/08; F; F41; F41H; F41H11/00; F41H11/05; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7838
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US211587A
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US351828A
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US1140565A
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US1078640A
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US1115670A
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US1717485A
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US1863732A
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US2130598A
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US2213375A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-03-26 | 1954-09-25 | 1955-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-26 | 1958-09-25 | 1959-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-26 | 1962-09-25 | 1963-03-27 | $7700.00 | Window Closed / Lapsed |