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US3567242A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wheeled coaster device
Assignee: Individual
•
Filing: 1969-06-26
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Granted: 1971-03-02
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Expires: 1989-06-26
Abstract
Abstract A COASTER DEVICE IS COMPOSED OF A PLATFORM BENEATH WHICH ARE MOUNTED THREE WHEELS, ARRANGED IN THE FORM OF A TRIANGLE. TWO OF THE WHEELS ARE EACH PROVIDED WITH SEPARATE STEERING MEANS WHILE THE THIRD WHEEL IS FREE TO PIVOT ABOUT ITS VERTICAL AXIS. THE PLATFORM IS PREFERABLY TRIANGULAR AND IS OF SUFFICIENT SIZE AND STRENGTH TO SUPPORT ONE OR MORE PERSONS IN A SITTING OR KNEELING POSITION. CASTERS ARE PREFERABLY USED FOR THE WHEELS. THE CASTER STEMS FOR THE TWO STEERABLE WHEELS ARE EACH KEYED TO ONE END OF A TUBULAR SHAFT EXTENDING VERTICALLY THROUGH THE PLATFORM. A SUITABLE HANDLE IS ATTACHED TO THE OTHER END OF EACH SHAFT.
Inventors
- 👤 Larry F Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:56
CPC Classifications
B; B62; B62B; B62B17/00; B62B17/06; B62B17/063; B62B17/067; B62B15/00; B62B15/008; B62B2301/00
Claims Analysis
Total Claims: 0
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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) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |