Patent US3208544A successfully refreshed from Google Patents.
US3208544A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stepping wheel vehicle
Assignee: Individual
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Filing: 1963-05-17
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Granted: 1965-09-28
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Expires: 1983-05-17
Abstract
No abstract record available.
Inventors
- 👤 James W Colvin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:56
CPC Classifications
B; B62; B62D; B62D53/00; B62D53/02; B62D57/00; B62D57/02; B62D57/022
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
A VEHICLE COMPRISING AN ELONGATED BODY INCLUDING A FORWARD PART AND A REARWARD PART INTERCONNECTED BY A COUPLING PROVIDING FREEDOM OF ROLLING AND YAWING MOVEMENT OF THE TWO BODY PARTS RELATIVE TO EACH OTHER, MANUALLY CONTROLLED POWER ACTUATED MEANS INTERCONNECTED BETWEEN SAID BODY PARTS FOR CAUSING CONTROLLED YAWING MOVEMENTS OF ONE PART RELATIVE TO THE OTHER FOR STEERING THE VEHICLE, TWO WHEELS SUPPORTING EACH BODY PART AND DISPOSED AT RESPECTIVELY OPPOSITE SIDES THEREOF, POWER PLANT HOUSINGS CARRIED BY EACH BODY PART AND PROVIDING BEARINGS FOR THE CORRESPONDING WHEELS, AND A WHEEL DRIVING POWER PLANT IN EACH COMPARTMENT, EACH OF SAID WHEELS COMPRISING A COMPOUND STEPPING WHEEL INCLUDING A CENTRAL HUB STRUCTURE AND A PLURALITY OF SIMPLE WHEELS CARRIED BY AND ARRANGED AROUND SAID CENTRAL HUB STRUCTURE, AND MEANS FOR SELECTIVELY DRIVING THE COMPOUND WHEEL OR THE SIMPLE WHEELS.
Claim 2
Dependent Claim
138 words
A VEHICLE COMPRISING AN ELONGATED BODY INCLUDING A FORWARD PART AND A REARWARD PART INTERCONNECTED BY A COUPLING PROVIDING FREEDOM OF ROLLING AND YAWING MOVEMENT OF THE TWO BODY PARTS RELATIVE TO EACH OTHER, MANUALLY CONTROLLED POWER ACTUATED MEANS INTERCONNECTED BETWEEN SAID BODY PARTS FOR CAUSING CONTROLLED YAWING MOVEMENTS OF ONE PART RELATIVE TO THE OTHER FOR STEERING THE VEHICLE, TWO WHEELS SUPPORTING EACH BODY PART AND DISPOSED AT RESPECTIVELY OPPOSITE SIDES THEREOF, POWER PLANT HOUSINGS CARRIED BY EACH BODY PART AND PROVIDING BEARINGS FOR THE CORRESPONDING WHEELS, AND A WHEEL DRIVING POWER PLANT IN EACH COMPARTMENT, EACH OF SAID WHEELS COMPRISING A COMPOUND STEPPING WHEEL INCLUDING A CENTRAL HUB STRUCTURE AND A PLURALITY OF SIMPLE WHEELS CARRIED BY AND ARRANGED AROUND SAID CENTRAL HUB STRUCTURE, AND MEANS FOR SELECTIVELY DRIVING THE COMPOUND WHEEL OR THE SIMPLE WHEELS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-27 | 1969-03-29 | 1969-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-27 | 1973-03-29 | 1973-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-27 | 1977-03-29 | 1977-09-28 | $7700.00 | Window Closed / Lapsed |