US3980312A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ski containing a coating strip on its sliding surface
Assignee: Individual
•
Filing: 1975-01-29
•
Granted: 1976-09-14
•
Expires: 1995-01-29
Abstract
Abstract A ski comprising at least one coating strip applied to at least a portion of its sliding surface, wherein at least a part of the coating strip is interchangeable, said coating strip being removably affixed to the underside of the ski.
Inventors
- 👤 Franz Buttner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:58
CPC Classifications
A; A63; A63C; A63C5/00; A63C5/04; A63C5/0428; A63C5/0422; A63C5/044; A63C7/00; A63C7/02; A63C7/06
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
74 words
A ski comprising a coating strip fixed to the underside of the ski, said coating strip provided with a central guiding groove and at least one longitudinal recess disposed on each side of said central guiding groove, each of said recesses containing at least one interchangeable insert strip having an outer surface for contacting the surface over which the ski moves and having removable mounting means for selectively fixing said strip in said recess.
Claim 2
Dependent Claim
74 words
A ski comprising a coating strip fixed to the underside of the ski, said coating strip provided with a central guiding groove and at least one longitudinal recess disposed on each side of said central guiding groove, each of said recesses containing at least one interchangeable insert strip having an outer surface for contacting the surface over which the ski moves and having removable mounting means for selectively fixing said strip in said recess.
Claim 3
Dependent Claim
15 words
The ski of claim 1, wherein the coating strip is made of a plastic material.
Claim 4
Dependent Claim
54 words
The ski of claim 2, wherein the insert strip has a plastic coating on said outer surface thereof, and wherein said removable mounting means comprises an adhesive disposed on the inner surface of said insert strip, said insert strip being fixable in said recesses and removable from said recesses by pressure and pulling, respectively.
Claim 5
Dependent Claim
21 words
The ski of claim 3, wherein at least three longitudinal recesses are disposed on each side of the central guiding groove.
Claim 6
Dependent Claim
18 words
The ski of claim 2, wherein the coating strip has a thickness of about 1 to 3 mm.
Claim 7
Dependent Claim
17 words
The ski of claim 1, wherein the recesses have a depth of about 0.1 to 0.4 mm.
Claim 8
Dependent Claim
20 words
The ski of claim 2, wherein the outer surface of the insert strip has a smooth wax or plastic surface.
Claim 9
Dependent Claim
20 words
The ski of claim 1, wherein the outer surface of the insert strip contains a plurality of recesses or projections.
Claim 10
Dependent Claim
20 words
The ski of claim 8, wherein about 10 to 100 recesses per square centimeter are provided in the insert strip.
Claim 11
Dependent Claim
22 words
The ski of claim 8, wherein the recesses have a sharp front edge which tapers off at the rear of the recess.
Claim 12
Dependent Claim
22 words
The ski of claim 10, wherein the recesses have a width of about 0.5 mm and a length of about 1 mm.
Claim 13
Dependent Claim
18 words
The ski of claim 2, wherein the coating strip has a thickness of about 2 to 5 mm.
Claim 14
Dependent Claim
18 words
The ski of claim 1, wherein the coating strip is removably fixed to the underside of the ski.
References Cited (Backward Citations)
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Cited
US2142459A
Cited
DE961335C
Cited
US3276784A
Cited
US3520546A
Cited
DE1803836A1
Cited
US3567237A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-09-14 | 1980-03-15 | 1980-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-09-14 | 1984-03-15 | 1984-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-09-14 | 1988-03-15 | 1988-09-14 | $7700.00 | Window Closed / Lapsed |