US3148743A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-propelled snow vehicle
Assignee: Individual
•
Filing: 1962-02-23
•
Granted: 1964-09-15
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Expires: 1982-02-23
Abstract
No abstract record available.
Inventors
- 👤 Arthur J Jarvi
- 👤 Nestor W Jarvi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 00:05
CPC Classifications
B; B62; B62M; B62M27/00; B62M27/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
173 words
IN A SELF-PROPELLED SNOW VEHICLE INCLUDING A TRACTION FRAME, FORWARDLY EXTENDING LOAD CARRYING AND GROUND ENGAGING STEERING MEANS PIVOTALLY SECURED TO SAID FRAME, MOTOR DRIVE MEANS MOUNTED ON SAID FRAME, LONGITUDINALLY SPLIT ENDLESS BELT MEANS ROTATABLY MOUNTED ON EACH SIDE OF SAID FRAME, A PLURALITY OF CROSS BARS OVERLYING EACH OF SAID BELT MEANS TO FORM THEREWITH TRACTION MEANS FOR SAID VEHICLE, THE COMBINATION OF: A DRIVE COG WHEEL OPERATIVELY CONNECTED TO SAID MOTOR DRIVE MEANS AND ROTATABLY MOUNTED ON EACH SIDE OF SAID FRAME; AND A GUIDE COG WHEEL ROTATABLY MOUNTED ON EACH SIDE OF SAID FRAME IN LONGITUDINALLY SPACED RELATION TO SAID DRIVE COG WHEEL; SAID COG WHEELS EACH BEING ENGAGEABLE WITH SAID CROSS BARS AND EACH INCLUDING A PLURALITY OF CIRCUMFERENTIALLY ARRANGED SECTOR SHAPED ELEMENTS; EACH OF SAID SECTOR SHAPED ELEMENTS HAVING A RADIAL CROSS BAR CONTACT FACE AND AN ARCUATE SHOULDER EXTENDING THEREFROM IN RADIALLY INWARDLY SPACED RELATION TO SAID CROSS BARS; SAID ARCUATE SHOULDERS OF SAID SECTOR SHAPED ELEMENTS BEING OF LESSER WIDTH THAN THE SAID CONTACT FACES.
Claim 2
Dependent Claim
173 words
IN A SELF-PROPELLED SNOW VEHICLE INCLUDING A TRACTION FRAME, FORWARDLY EXTENDING LOAD CARRYING AND GROUND ENGAGING STEERING MEANS PIVOTALLY SECURED TO SAID FRAME, MOTOR DRIVE MEANS MOUNTED ON SAID FRAME, LONGITUDINALLY SPLIT ENDLESS BELT MEANS ROTATABLY MOUNTED ON EACH SIDE OF SAID FRAME, A PLURALITY OF CROSS BARS OVERLYING EACH OF SAID BELT MEANS TO FORM THEREWITH TRACTION MEANS FOR SAID VEHICLE, THE COMBINATION OF: A DRIVE COG WHEEL OPERATIVELY CONNECTED TO SAID MOTOR DRIVE MEANS AND ROTATABLY MOUNTED ON EACH SIDE OF SAID FRAME; AND A GUIDE COG WHEEL ROTATABLY MOUNTED ON EACH SIDE OF SAID FRAME IN LONGITUDINALLY SPACED RELATION TO SAID DRIVE COG WHEEL; SAID COG WHEELS EACH BEING ENGAGEABLE WITH SAID CROSS BARS AND EACH INCLUDING A PLURALITY OF CIRCUMFERENTIALLY ARRANGED SECTOR SHAPED ELEMENTS; EACH OF SAID SECTOR SHAPED ELEMENTS HAVING A RADIAL CROSS BAR CONTACT FACE AND AN ARCUATE SHOULDER EXTENDING THEREFROM IN RADIALLY INWARDLY SPACED RELATION TO SAID CROSS BARS; SAID ARCUATE SHOULDERS OF SAID SECTOR SHAPED ELEMENTS BEING OF LESSER WIDTH THAN THE SAID CONTACT FACES.
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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) | 1967-09-15 | 1968-03-16 | 1968-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-15 | 1972-03-16 | 1972-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-15 | 1976-03-16 | 1976-09-15 | $7700.00 | Window Closed / Lapsed |