US3208422A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Boat construction
Assignee: Individual
•
Filing: 1964-09-28
•
Granted: 1965-09-28
•
Expires: 1984-09-28
Abstract
No abstract record available.
Inventors
- 👤 Richard W Schopmeyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:31
CPC Classifications
B; B63; B63B; B63B39/00; B63B39/06; B63B39/061; B63B1/00; B63B1/16; B63B1/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
173 words
IN COMBINATION WITH A BOAT HAVIN A BOTTOM AND A TRANSOM; A HYDROFOIL COMPRISING A VERTICALLY POSITIONED CENTER BOARD SECURED TO SAID BOTTOM AND EXTENDING DOWNWARDLY THEREFROM AND THROUGHOUT A MAJOR PORTION OF THE LENGTH OF THE BOTOM OF THE BOAT AND HAVING A LONGITUDINAL SLOT OPENING TO THE REAR NEAR THE TOP THEREOF, SAID CENTER BOARD SLOPING DOWNWARDLY AND REARWARDLY ALONG ITS FORWARD EDGE AND HAVING A SUBSTANTIALLY VERTICAL REAR EDGE IN SUBSTANTIAL ALIGNMENT WITH SAID TRANSOM, A PLURALITY OF HORIZONTALLY POSITIONED VANES LONGITUDINALLY ARRANGED WITH RESPECT TO SAID CENTER BOARD AND EXTENDING REARWARDLY FROM THE FORWARD EDGE OF SAID CENTER BOARD AND TERMINATING FORWARDLY OF THE REAR EDGE THEREOF, HORIZONTALLY POSITIONED STABILIZERS DISPOSED ON EACH SIDE OF SAID CENTER BOARD ALONG THE BOTTOM NEAR THE REAR EDGE AND HAVING SMALL VERTICAL STABILIZER MEMBERS EXTENDING UPWARDLY FROM THE TIPS THEREOF, ELEVATOR FLAPS PIVOTALLY CONNECTED TO THE REAR EDGE OF SAID STABILIZERS, OPERATING LEVERS IN SAID BOAT, AND LINKAGE EXTENDING THROUGH SAID SLOT AND CONNECTING SAID OPERATING LEVERS WITH THE RESPECTIVE ELEVATOR FLAPS.
Claim 2
Dependent Claim
173 words
IN COMBINATION WITH A BOAT HAVIN A BOTTOM AND A TRANSOM; A HYDROFOIL COMPRISING A VERTICALLY POSITIONED CENTER BOARD SECURED TO SAID BOTTOM AND EXTENDING DOWNWARDLY THEREFROM AND THROUGHOUT A MAJOR PORTION OF THE LENGTH OF THE BOTOM OF THE BOAT AND HAVING A LONGITUDINAL SLOT OPENING TO THE REAR NEAR THE TOP THEREOF, SAID CENTER BOARD SLOPING DOWNWARDLY AND REARWARDLY ALONG ITS FORWARD EDGE AND HAVING A SUBSTANTIALLY VERTICAL REAR EDGE IN SUBSTANTIAL ALIGNMENT WITH SAID TRANSOM, A PLURALITY OF HORIZONTALLY POSITIONED VANES LONGITUDINALLY ARRANGED WITH RESPECT TO SAID CENTER BOARD AND EXTENDING REARWARDLY FROM THE FORWARD EDGE OF SAID CENTER BOARD AND TERMINATING FORWARDLY OF THE REAR EDGE THEREOF, HORIZONTALLY POSITIONED STABILIZERS DISPOSED ON EACH SIDE OF SAID CENTER BOARD ALONG THE BOTTOM NEAR THE REAR EDGE AND HAVING SMALL VERTICAL STABILIZER MEMBERS EXTENDING UPWARDLY FROM THE TIPS THEREOF, ELEVATOR FLAPS PIVOTALLY CONNECTED TO THE REAR EDGE OF SAID STABILIZERS, OPERATING LEVERS IN SAID BOAT, AND LINKAGE EXTENDING THROUGH SAID SLOT AND CONNECTING SAID OPERATING LEVERS WITH THE RESPECTIVE ELEVATOR FLAPS.
References Cited (Backward Citations)
US2139303A
Cited
GB458771A
Cited
US2387700A
Cited
US2748400A
Cited
US2858788A
Cited
US2955559A
Cited
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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) | 1968-09-27 | 1969-03-29 | 1969-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-27 | 1973-03-29 | 1973-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-27 | 1977-03-29 | 1977-09-28 | $7700.00 | Window Closed / Lapsed |