Patent US3762734A successfully refreshed from Google Patents.
US3762734A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Skis
Assignee: Individual
•
Filing: 1971-05-28
•
Granted: 1973-10-02
•
Expires: 1991-05-28
Abstract
Abstract The specification describes a ski with an elongated hollow girder made up of two shells. The two shells are generally Ushaped and have approximately parallel surface parts, with a facing of at least 0.2 mm, in each side wall of the respective ski. These surface parts are connected by a shock absorbing plastic material so as to provide a firm joint between them.
Inventors
- 👤 R Vogel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:23
CPC Classifications
A; A63; A63C; A63C5/00; A63C5/12
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
63 words
A ski comprising at least two elongated hollow girders forming shells and being U-shaped, the shells having surface parts which are generally parallel and have a spacing of at least 0.2 mm at each side wall of the ski, the surface parts being connected together allowing relative movement by a shock absorbing plastics material to form a vertically aligned shock absorbing sandwich structure.
Claim 2
Dependent Claim
63 words
A ski comprising at least two elongated hollow girders forming shells and being U-shaped, the shells having surface parts which are generally parallel and have a spacing of at least 0.2 mm at each side wall of the ski, the surface parts being connected together allowing relative movement by a shock absorbing plastics material to form a vertically aligned shock absorbing sandwich structure.
Claim 3
Dependent Claim
29 words
A ski in accordance with claim 1 in which the breadth of the joint gap varies as seen in cross through the ski along the length of the limbs.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-01 | 1977-04-02 | 1977-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-01 | 1981-04-02 | 1981-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-01 | 1985-04-02 | 1985-10-02 | $7700.00 | Window Closed / Lapsed |