US3336890A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Keel structure
Assignee: Individual
•
Filing: 1966-02-16
•
Granted: 1967-08-22
•
Expires: 1986-02-16
Abstract
No abstract record available.
Inventors
- 👤 Andre J M Laurent
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:00
CPC Classifications
B; B63; B63B; B63B1/00; B63B1/02; B63B1/10; B63B1/14; B63B39/00; B63B39/06; B63B39/062
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
A SAILBOAT HAVING A MAIN HULL AND A FIXED OUTRIGGER HULL AFFIXED THERETO COMPRISING IN COMBINATION: (A) A SMALL AUXILIARY FLOAT, (B) AN ARM CONNECTING SAID FLOAT AND SAID MAIN HULL, SAID ARM BEING FIXED WITH RESPECT TO SAID FLOAT AND BEING PIVOTED IN A FORE AND AFT DIRECTION WITH RESPECT TO SAID HULL WHEREBY THE FLOAT IS FREE TO REMAIN SUBSTANTIALLY UPRIGHT IN THE WATER AS THE MAIN HULL HEELS, (C) A TRAILING RUDDER HORIZONTALLY PIVOTED TO SAID FLOAT AND (D) MEANS FOR TURNING THE RUDDER ON A VERTICAL AXIS TO STEER THE BOAT.
Claim 2
Dependent Claim
95 words
A SAILBOAT HAVING A MAIN HULL AND A FIXED OUTRIGGER HULL AFFIXED THERETO COMPRISING IN COMBINATION: (A) A SMALL AUXILIARY FLOAT, (B) AN ARM CONNECTING SAID FLOAT AND SAID MAIN HULL, SAID ARM BEING FIXED WITH RESPECT TO SAID FLOAT AND BEING PIVOTED IN A FORE AND AFT DIRECTION WITH RESPECT TO SAID HULL WHEREBY THE FLOAT IS FREE TO REMAIN SUBSTANTIALLY UPRIGHT IN THE WATER AS THE MAIN HULL HEELS, (C) A TRAILING RUDDER HORIZONTALLY PIVOTED TO SAID FLOAT AND (D) MEANS FOR TURNING THE RUDDER ON A VERTICAL AXIS TO STEER THE BOAT.
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) | 1970-08-21 | 1971-02-20 | 1971-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-21 | 1975-02-20 | 1975-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-21 | 1979-02-20 | 1979-08-22 | $7700.00 | Window Closed / Lapsed |