US3940157A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ski structure
Assignee: Nippon Gakki Co Ltd
•
Filing: 1974-01-31
•
Granted: 1976-02-24
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Expires: 1994-01-31
Abstract
Abstract A ski structure having a core comprising: at least one elastic, tough, box-like inner core frame extending longitudinally within the ski throughout the major portion thereof, upper and bottom members enclosing therein said at least one inner core frame and defining at least one space extending longitudinally for the length of the members, excepting the shovel portion of the ski, and being located adjacent to said inner core frame, filling means contained in said space, and binding means made of a tough plastic material enclosing the inner core frame and the filling means to firmly wrap and bind them together. The filling means in different embodiments of the invention is honeycomb material and foamed plastic.
Inventors
- 👤 Kenichi Sakuma
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:16
CPC Classifications
A; A63; A63C; A63C5/00; A63C5/12
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
93 words
A ski structure comprising separate upper and bottom members defining a space therebetween which extends substantially the length of said ski; a single elastic, box-like inner core frame located within said space and extending longitudinally of the ski, said frame being dimensioned in width to occupy only a portion of said space; filling means on opposite sides of said core frame occupying substantially the remaining portion of said space laterally of the frame; and binding means within said space surrounding the frame and the filling means to hold same together as a unit.
Claim 2
Dependent Claim
93 words
A ski structure comprising separate upper and bottom members defining a space therebetween which extends substantially the length of said ski; a single elastic, box-like inner core frame located within said space and extending longitudinally of the ski, said frame being dimensioned in width to occupy only a portion of said space; filling means on opposite sides of said core frame occupying substantially the remaining portion of said space laterally of the frame; and binding means within said space surrounding the frame and the filling means to hold same together as a unit.
Claim 3
Dependent Claim
19 words
A ski structure according to claim 1, wherein said frame has a hollow interior which contains a foamed plastic.
Claim 4
Dependent Claim
14 words
A ski structure according to claim 2, wherein said filling means comprises honeycomb members.
Claim 5
Dependent Claim
96 words
A ski structure comprising separate upper and bottom members defining a space therebetween which extends substantially the length of said ski; a single elastic, box-like inner core frame located within said space and extending longitudinally of the ski, said frame being dimensioned in width to occupy only a portion of said space; filling means comprising honeycomb members on opposite sides of said core frame occupying substantially the remaining portion of said space laterally of the frame; and binding means within said space surrounding the frame and the filling means to hold same together as a unit.
Claim 6
Dependent Claim
96 words
A ski structure comprising separate upper and bottom members defining a space therebetween which extends substantially the length of said ski; a single elastic, box-like inner core frame located within said space and extending longitudinally of the ski, said frame being dimensioned in width to occupy only a portion of said space; filling means comprising honeycomb members on opposite sides of said core frame occupying substantially the remaining portion of said space laterally of the frame; and binding means within said space surrounding the frame and the filling means to hold same together as a unit.
Claim 7
Dependent Claim
19 words
A ski structure according to claim 4, wherein said frame has a hollow interior which contains a foamed plastic.
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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) | 1979-02-23 | 1979-08-25 | 1980-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-02-23 | 1983-08-25 | 1984-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-02-23 | 1987-08-25 | 1988-02-24 | $7700.00 | Window Closed / Lapsed |