US3621607A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-propelled toy vehicle
Assignee: Glass Marvin and Associates
•
Filing: 1969-12-15
•
Granted: 1971-11-23
•
Expires: 1989-12-15
Abstract
Abstract A SELF-PROPELLED TOY VEHICLE WHEREIN THE SUPPORTING AND DRIVING MEANS ALSO PROVIDES A GYROSCOPIC EFFECT ON THE TRAVEL OF VEHICLE. THE TOY VEHICLE HAS MOUNTED THEREON A SINGLE SUPPORTING WHEEL IN THE FORM OF A ROTATABLE FLYWHEEL, WHICH IS CAPABLE OF STORING SUFFICIENT ENERGY TO PROVIDE A GYROSCOPIC EFFECT ON THE VEHICLE WHEN THE ROTATING FVLYWHEEL IS PLACED ON A SUPPORTING SURFACE. IN THE ILLUSTRATED EMIBODIMENT, THE FLYWHEEL IS WOUND WITH A STRING, SIMILARLY TO THE WINDING OF A GYROSCOPIC TOP, AND A LAUNCHING DEVICE IS ALSO PROVIDED IN ORDER TO FACILITATE LAUNCHING THE DEVICE IN A BALANCED CONDITION AND ALONG A STRAIGHT LINE.
Inventors
- 👤 Howard J Morrison
- 👤 Marvin I Glass
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:30
CPC Classifications
A; A63; A63G; A63G19/00; B; B62; B62D; B62D37/00; B62D37/04; B62D37/06
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-22 | 1975-05-24 | 1975-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-22 | 1979-05-24 | 1979-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-22 | 1983-05-24 | 1983-11-23 | $7700.00 | Window Closed / Lapsed |