Patent US3585955A successfully refreshed from Google Patents.
US3585955A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Asymmetric catamaran
Assignee: Individual
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Filing: 1969-04-10
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Granted: 1971-06-22
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Expires: 1989-04-10
Abstract
Abstract An asymmetric catamaran having a main hull and an outboard hull joined by a swept-back wing. The wing is attached to the main hull by bolts and by an inner flange seating in a groove in the inner surface of the sidewall of the main hull. The hulls and wing are composed essentially of fiber glass and polyurethane foam to provide lightness and buoyancy.
Inventors
- 👤 Richard T Cella
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:22
CPC Classifications
B; B63; B63B; B63B1/00; B63B1/02; B63B1/10; B63B1/12; B63B1/121; B63B2001/102; B63B3/00; B63B3/02; B63B3/08; B63B2003/085
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
93 words
A catamaran comprising a main hull and an outboard hull, a wing joining said hulls, said wing having a downwardly extending flange disposEd over the inner wall of said main hull and seated at its lower end in a groove formed in the inner surface of said hull and fastening means securing said wing to said main hull, said fastening means including an outwardly extending flange on said main hull engaging the under side of said wing and fastening members extending through said flange and said wing to clamp said wing in place.
Claim 2
Dependent Claim
93 words
A catamaran comprising a main hull and an outboard hull, a wing joining said hulls, said wing having a downwardly extending flange disposEd over the inner wall of said main hull and seated at its lower end in a groove formed in the inner surface of said hull and fastening means securing said wing to said main hull, said fastening means including an outwardly extending flange on said main hull engaging the under side of said wing and fastening members extending through said flange and said wing to clamp said wing in place.
Claim 3
Dependent Claim
35 words
A catamaran as set forth in claim 1 in which a horizontal flange extends inwardly over the inner surface of said main hull and is secured to said first flange near the lower end thereof.
Claim 4
Dependent Claim
79 words
A catamaran comprising a main hull and an outboard hull, a wing joining said hulls, said wing having a downwardly extending flange disposed over the inner wall of said main hull and seated at its lower end in a groove formed in the inner surface of said hull and fastening means securing said wing to said main hull, each of said hulls having one outwardly curved side and one side which is relatively straight to form an asymmetric contour.
Claim 5
Dependent Claim
79 words
A catamaran comprising a main hull and an outboard hull, a wing joining said hulls, said wing having a downwardly extending flange disposed over the inner wall of said main hull and seated at its lower end in a groove formed in the inner surface of said hull and fastening means securing said wing to said main hull, each of said hulls having one outwardly curved side and one side which is relatively straight to form an asymmetric contour.
Claim 6
Dependent Claim
30 words
A catamaran as set forth in claim 3 in which the outboard hull is smaller than the main hull and its contour is a mirror image of the main hull.
References Cited (Backward Citations)
US3002484A
Cited
US3276413A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-21 | 1974-12-21 | 1975-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-21 | 1978-12-21 | 1979-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-21 | 1982-12-21 | 1983-06-22 | $7700.00 | Window Closed / Lapsed |