Patent US3146840A successfully refreshed from Google Patents.
US3146840A
Expired / Lapsed
US
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Powered endless track snow sled
Assignee: Individual
•
Filing: 1959-07-13
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Granted: 1964-09-01
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Expires: 1979-07-13
Abstract
No abstract record available.
Inventors
- 👤 Walsh Jack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:14
CPC Classifications
A; A63; A63C; A63C11/00; A63C11/10; A63C5/00; A63C5/08; A63C5/085; B; B62; B62M; B62M27/00; B62M27/02
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
134 words
A SNOW VEHICLE, COMPRISING A SINGLE ELONGATED NONARTICULATED SNOW RUNNER HAVING A WIDTH SUBSTANTIALLY THE SAME AS THE FULL WIDTH OF THE VEHICLE, POWER MEANS INCLUDING A CENTRAL CHAIN EXTENDING THE FULL LENGTH OF THE RUNNER AND CLEATS ON SAID RUNNER EXTENDING ACROSS THE FULL WIDTH OF THE RUNNERS, SAID CLEATS ADAPTED TO ENGAGE AND THRUST AGAINST THE SNOW FOR MOVING THE RUNNER THEREOVER, AND A SEAT MOUNTED ON SAID RUNNER, SAID SEAT AND RUNNER BEING PROPORTIONED TO SUPPORT A SKI-SHOD OPERATOR ASTRIDE THE SEAT AND WITH HIS SKIS RIDING ON THE SNOW ON OPPOSITE SIDES OF THE RUNNER FOR CONTROLLING THE DIRECTION OF TRAVEL OF THE VEHICLE, SAID RUNNER HAVING A WIDTH-TO-LENGTH RATIO OF APPROXIMATELY ONE TO EIGHT WHEREBY SAID RUNNER MAY BE MADE NARROW ENOUGH FOR THE OPERATOR''S SKIS TO RIDE ON
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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) | 1967-09-01 | 1968-03-02 | 1968-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-01 | 1972-03-02 | 1972-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-01 | 1976-03-02 | 1976-09-01 | $7700.00 | Window Closed / Lapsed |