Patent US3613620A successfully refreshed from Google Patents.
US3613620A
Expired / Lapsed
US
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Safety hull for watercraft
Assignee: Individual
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Filing: 1969-08-11
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Granted: 1971-10-19
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Expires: 1989-08-11
Abstract
Abstract A safety hull for watercraft in which a catamaran-type hull provides improved stability during all types of sea, minimizes friction contact with the water to afford maximum speed and efficiency, in which the twin hulls include compartmentalized walls to prevent sinking, and in which forward and aft resilient bumpers protect the hull during collision, and also protect the hull while anchored in a harbor or moored at a pier.
Inventors
- 👤 Nicomedes S Generoso
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:42
CPC Classifications
B; B63; B63B; B63B43/00; B63B43/18; B63B1/00; B63B1/02; B63B1/10; B63B1/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
In a ship, a hull, said hull comprising generally parallel hull elements integrally connected by an overlying superstructure; said hull elements defining a through tunnel forward to aft for having a propulsion unit disposed therein, said hull including inflatable bumpers spanning both hull elements and physically mating with and contacting the total curved surfaces of the hull elements at the fore and aft ends of said hull elements, said hull elements including cellular walls comprising a plurality of longitudinal cellular spaces lying in parallel vertical planes transverse with the longitudinal axis of said hull and providing independent buoyancy to the hull.
Claim 2
Dependent Claim
101 words
In a ship, a hull, said hull comprising generally parallel hull elements integrally connected by an overlying superstructure; said hull elements defining a through tunnel forward to aft for having a propulsion unit disposed therein, said hull including inflatable bumpers spanning both hull elements and physically mating with and contacting the total curved surfaces of the hull elements at the fore and aft ends of said hull elements, said hull elements including cellular walls comprising a plurality of longitudinal cellular spaces lying in parallel vertical planes transverse with the longitudinal axis of said hull and providing independent buoyancy to the hull.
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) | 1974-10-18 | 1975-04-19 | 1975-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-18 | 1979-04-19 | 1979-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-18 | 1983-04-19 | 1983-10-19 | $7700.00 | Window Closed / Lapsed |