US2961988A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inboard propulsion unit for boats
Assignee: Individual
•
Filing: 1958-03-04
•
Granted: 1960-11-29
•
Expires: 1978-03-04
Abstract
No abstract record available.
Inventors
- 👤 Wilfred R Wood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:53
CPC Classifications
B; B63; B63H; B63H5/00; B63H5/07; B63H5/125; B63H5/1252
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US367125A
Cited
US830908A
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US2076603A
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US2265079A
Cited
US2755766A
Cited
US2742013A
Cited
US2856883A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-29 | 1964-05-30 | 1964-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-29 | 1968-05-30 | 1968-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-29 | 1972-05-30 | 1972-11-29 | $7700.00 | Window Closed / Lapsed |