US3568617A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Step-ramp v-hull
Assignee: Individual
•
Filing: 1969-03-11
•
Granted: 1971-03-09
•
Expires: 1989-03-11
Abstract
Abstract A boat hull construction provided with longitudinally extending bottom surfaces including (1) a forward section extending generally horizontally forward from generally amidships and curving forwardly and upwardly at its forward end, (2) a generally horizontally disposed rear section spaced rearwardly of the forward section and above a horizontal plane containing the rearmost portions of the forward section, and (3) an intermediate section inclined rearwardly and upwardly and extending between the rear and front ends of the front and rear sections, respectively, a step of low vertical height joining the front and rear ends of the intermediate and forward sections.
Inventors
- 👤 John V Yost
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:56
CPC Classifications
B; B63; B63B; B63B1/00; B63B1/02; B63B1/04; B63B1/042
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
110 words
A boat hull construction including longitudinally extending bottom surfaces, said bottom surfaces including a forward section extending generally horizontally forward from generally amidships and curving forwardly and upwardly at its forward end, an intermediate section inclined rearwardly and upwardly from the rear end of said forward section at an angle less than 15*, and a generally horizontally disposed rear section extending rearwardly from the rear end of said intermediate section, a vertically short minimum height step defined between the front and rear ends of said intermediate and forward sections, respectively, with the rear end of said forward section disposed below the elevation of the forward end of said intermediate section.
Claim 2
Dependent Claim
110 words
A boat hull construction including longitudinally extending bottom surfaces, said bottom surfaces including a forward section extending generally horizontally forward from generally amidships and curving forwardly and upwardly at its forward end, an intermediate section inclined rearwardly and upwardly from the rear end of said forward section at an angle less than 15*, and a generally horizontally disposed rear section extending rearwardly from the rear end of said intermediate section, a vertically short minimum height step defined between the front and rear ends of said intermediate and forward sections, respectively, with the rear end of said forward section disposed below the elevation of the forward end of said intermediate section.
Claim 3
Dependent Claim
20 words
The combination of claim 1 wherein said rear section includes a pair of opposite side upwardly and outwardly inclined surfaces.
Claim 4
Dependent Claim
27 words
The combination of claim 1 wherein said intermediate section includes a pair of opposite side rearwardly and upwardly inclined surfaces which are also upwardly and outwardly inclined.
Claim 5
Dependent Claim
20 words
The combination of claim 1 wherein said forward section includes a pair of opposite side upwardly and outwardly inclined surfaces.
Claim 6
Dependent Claim
50 words
The combination of claim 1 wherein said forward section includes a pair of opposite side upwardly and outwardly inclined surfaces terminating outwardly in downwardly and outwardly inclined chines, said forward section inclined surfaces and said chines defining downwardly opening coves extending longitudinally along the opposite sides of said forward section.
Claim 7
Dependent Claim
163 words
A boat hull construction including longitudinally extending bottom surfaces, said bottom surfaces including a forward section extending generally horizontally forward from generally amidships and curving forwardly and upwardly at its forward end, an intermediate section inclined rearwardly and upwardly from the rear end of said forward section, and a generally horizontally disposed rear section extending rearwardly from the rear end of said intermediate section, a vertically short step defined between the front and rear ends of said intermediate and forward sections, respectively, with the rear end of said forward section disposed below the elevation of the forward end of said intermediate section, said forward section surfaces, throughout the generally horizontal rear portions thereof, being inclined forwardly and upwardly less than 5* relative to a straight line extending between the central rear terminus of said rear section and the central rear terminus of said forward section, said rear section surfaces being also inclined forwardly and upwardly less than 5* relative to said straight line.
Claim 8
Dependent Claim
163 words
A boat hull construction including longitudinally extending bottom surfaces, said bottom surfaces including a forward section extending generally horizontally forward from generally amidships and curving forwardly and upwardly at its forward end, an intermediate section inclined rearwardly and upwardly from the rear end of said forward section, and a generally horizontally disposed rear section extending rearwardly from the rear end of said intermediate section, a vertically short step defined between the front and rear ends of said intermediate and forward sections, respectively, with the rear end of said forward section disposed below the elevation of the forward end of said intermediate section, said forward section surfaces, throughout the generally horizontal rear portions thereof, being inclined forwardly and upwardly less than 5* relative to a straight line extending between the central rear terminus of said rear section and the central rear terminus of said forward section, said rear section surfaces being also inclined forwardly and upwardly less than 5* relative to said straight line.
Claim 9
Dependent Claim
18 words
The combination of claim 1 which said step is between 1/8 inch and 1/2 inch in vertical extent.
References Cited (Backward Citations)
US3160134A
Cited
US3339514A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-08 | 1974-09-07 | 1975-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-08 | 1978-09-07 | 1979-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-08 | 1982-09-07 | 1983-03-09 | $7700.00 | Window Closed / Lapsed |