US3090459A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hand drawn vehicle with power assist
Assignee: Individual
•
Filing: 1959-07-21
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Granted: 1963-05-21
•
Expires: 1979-07-21
Abstract
No abstract record available.
Inventors
- 👤 Scudder John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:50
CPC Classifications
B; B60; B60K; B60K1/00; B62; B62B; B62B3/00; B62B3/04; B62B3/06; B62B3/0612
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
125 words
POWER DRIVE MECHANISM FOR INTERMITTENTLY DRIVING A HAND DRAWN VEHICLE OF A CHARACTER INCLUDING A SUPPORTING WHEEL AND A DRAFT HANDLE, AN AXLE MOUNTING SAID WHEEL, A REVERSIBLE ELECTRIC MOTOR, AN ELECTRIC CIRCUIT FOR CONNECTING SAID MOTOR TO A SOURCE OF ELECTRIC CIRCUIT FOR NORMALLY OPEN ON-OFF SWITCH IN SAID ELECTRIC CIRCUIT MANUALLY ACTUABLE TO CLOSE THE CIRCUIT FOR OPERATING THE MOTOR IN FORWARD OR REVERSE DIRECTIONS, A BI-DIRECTIONAL CLUTCH ACTUABLE DURING OPERATION OF THE MOTOR TO CONNECT THE MOTOR TO SAID WHEEL FOR DRIVING THE WHEEL, AND A NORMALLY CLOSED SWITCH IN SAID CIRCUIT OPERABLE IN RESPONSE TO A PREDETERMINED AXIS TORQUE SPEED TO OPEN THE CIRCUIT AND STOP THE MOTOR SO AS TO DISENGAGE THE CLUTCH AND PERMIT FREE WHEELING OF THE WHEEL.
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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) | 1966-05-20 | 1966-11-19 | 1967-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-20 | 1970-11-19 | 1971-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-20 | 1974-11-19 | 1975-05-21 | $7700.00 | Window Closed / Lapsed |