US2936730A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tiltable and steerable dual propeller drive for boats equipped with inboard motors
Assignee: LEE C MCCLURE
•
Filing: 1957-08-09
•
Granted: 1960-05-17
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Expires: 1977-08-09
Abstract
No abstract record available.
Inventors
- 👤 Jr Harry R Patty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:12
CPC Classifications
B; B63; B63H; B63H20/00; B63H20/14; B63H20/22; B63H20/08; B63H20/10; B63H20/12; B63H20/20; B63H2020/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1943323A
Cited
US1822573A
Cited
US1943288A
Cited
US2091557A
Cited
GB598598A
Cited
US2608060A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-17 | 1963-11-16 | 1964-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-17 | 1967-11-16 | 1968-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-17 | 1971-11-16 | 1972-05-17 | $7700.00 | Window Closed / Lapsed |