US3117548A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trolling device for power boats
Assignee: Individual
•
Filing: 1962-11-28
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Granted: 1964-01-14
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Expires: 1982-11-28
Abstract
No abstract record available.
Inventors
- 👤 Arthur O Rasmussen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:27
CPC Classifications
B; B63; B63H; B63H25/00; B63H25/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
A TROLLING DEVICE FOR POWER BOATS HAVING MOTORDRIVEN PROPELLERS DISPOSED BELOW THE WATER SURFACE, HAVING IN COMBINATION, A RIGID SUPPORTING FRAME SECURED REARWARDLY OF THE STERN OF A POWER BOAT, A WATER RESISTING RETARDING PLATE POSITIONED REARWARDLY OF SAID FRAME AND REARWARDLY OF THE BOAT PROPELLER, SUPPORTING AND OPERATING CONNECTION MECHANISM BETWEEN SAID FRAME AND SAID PLATE FOR EFFECTIVELY POSITIONING AND SHIFTING SAID PLATE FROM A POSITION ABOVE THE NORMAL WATER LINE OF THE STERN OF SAID BOAT TO A POSITION BELOW SAID WATER LINE AND REARWARDLY OF AND AT LEAST OPPOSING THE UPPER PORTION OF THE BOAT PROPELLER, SAID CONNECTION MECHANISM INCLUDING MEANS TO RETAIN SAID PLATE IN BOTH UPRAISED AND LOWERED POSITIONS, AND SAID OPERATING CONNECTIONS INCLUDING LINKAGE AND AT LEAST ONE COIL SPRING CONSTITUTING IN COMBINATION AN OVER-DEAD-CENTER MECHANISM FOR RETAINING SAID PLATE IN BOTH UPRAISED AND LOWERED POSITIONS.
Claim 2
Dependent Claim
142 words
A TROLLING DEVICE FOR POWER BOATS HAVING MOTORDRIVEN PROPELLERS DISPOSED BELOW THE WATER SURFACE, HAVING IN COMBINATION, A RIGID SUPPORTING FRAME SECURED REARWARDLY OF THE STERN OF A POWER BOAT, A WATER RESISTING RETARDING PLATE POSITIONED REARWARDLY OF SAID FRAME AND REARWARDLY OF THE BOAT PROPELLER, SUPPORTING AND OPERATING CONNECTION MECHANISM BETWEEN SAID FRAME AND SAID PLATE FOR EFFECTIVELY POSITIONING AND SHIFTING SAID PLATE FROM A POSITION ABOVE THE NORMAL WATER LINE OF THE STERN OF SAID BOAT TO A POSITION BELOW SAID WATER LINE AND REARWARDLY OF AND AT LEAST OPPOSING THE UPPER PORTION OF THE BOAT PROPELLER, SAID CONNECTION MECHANISM INCLUDING MEANS TO RETAIN SAID PLATE IN BOTH UPRAISED AND LOWERED POSITIONS, AND SAID OPERATING CONNECTIONS INCLUDING LINKAGE AND AT LEAST ONE COIL SPRING CONSTITUTING IN COMBINATION AN OVER-DEAD-CENTER MECHANISM FOR RETAINING SAID PLATE IN BOTH UPRAISED AND LOWERED POSITIONS.
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) | 1967-01-13 | 1967-07-15 | 1968-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-13 | 1971-07-15 | 1972-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-13 | 1975-07-15 | 1976-01-14 | $7700.00 | Window Closed / Lapsed |