US3403654A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Watercraft propulsion
Assignee: Individual
•
Filing: 1965-12-30
•
Granted: 1968-10-01
•
Expires: 1985-12-30
Abstract
No abstract record available.
Inventors
- 👤 Wilson Wayne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:55
CPC Classifications
B; B60; B60F; B60F3/00; B60F3/0007; B60F3/0015; B63; B63H; B63H1/00; B63H1/30; B63H1/34; B63H2001/342; B63H2001/346
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3125981A
Cited
FR608514A
Cited
US1831835A
Cited
US2091958A
Cited
US2315027A
Cited
US2488310A
Cited
US2941494A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-01 | 1972-04-01 | 1972-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-01 | 1976-04-01 | 1976-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-01 | 1980-04-01 | 1980-10-01 | $7700.00 | Window Closed / Lapsed |