Patent US3645348A successfully refreshed from Google Patents.
US3645348A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power ski
Assignee: Individual
•
Filing: 1969-05-29
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Granted: 1972-02-29
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Expires: 1989-05-29
Abstract
Abstract This invention relates to a ski equipped with mechanical propelling means to propel the ski over snow-covered surface; the under surface of the ski slides over the snow at all times, and the mechanical propelling means may be engaged and disengaged from the snow surface.
Inventors
- 👤 Richard F Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:42
CPC Classifications
A; A63; A63C; A63C5/00; A63C5/08; A63C5/085
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
95 words
A power-driven ski comprising, in combination: an anterior elongated sliding ski surface portion for slidingly contacting the snow, a posterior toothed endless belt portion for driving said ski, means for attaching a ski boot to said sliding surface portion so that at least part of the skier''s weight is carried by said sliding surface portion, motor means carried by a skier for powering said endless belt portion, said motor means being flexibly coupled to said endless belt portion, a ski pole, means carried by said ski pole for controlling the speed of said endless belt.
Claim 2
Dependent Claim
95 words
A power-driven ski comprising, in combination: an anterior elongated sliding ski surface portion for slidingly contacting the snow, a posterior toothed endless belt portion for driving said ski, means for attaching a ski boot to said sliding surface portion so that at least part of the skier''s weight is carried by said sliding surface portion, motor means carried by a skier for powering said endless belt portion, said motor means being flexibly coupled to said endless belt portion, a ski pole, means carried by said ski pole for controlling the speed of said endless belt.
Claim 3
Dependent Claim
91 words
A power-driven ski comprising, in combination: an anterior elongated sliding ski surface portion for slidingly contacting the snow, a posterior toothed endless belt portion for driving said ski, means for attaching a ski boot to said sliding surface portion so that at least part of the skier''s weight is carried by said sliding surface portion, motor means for powering said endless belt portion, said motor means being coupled to said endless belt portion, a ski pole, and means carried by said ski pole for controlling the speed of said endless belt.
Claim 4
Dependent Claim
91 words
A power-driven ski comprising, in combination: an anterior elongated sliding ski surface portion for slidingly contacting the snow, a posterior toothed endless belt portion for driving said ski, means for attaching a ski boot to said sliding surface portion so that at least part of the skier''s weight is carried by said sliding surface portion, motor means for powering said endless belt portion, said motor means being coupled to said endless belt portion, a ski pole, and means carried by said ski pole for controlling the speed of said endless belt.
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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) | 1975-02-28 | 1975-08-30 | 1976-02-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-28 | 1979-08-30 | 1980-02-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-28 | 1983-08-30 | 1984-02-29 | $7700.00 | Window Closed / Lapsed |