US3503152A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drive system for walking toys
Assignee: Tomy Kogyo Co Ltd
•
Filing: 1968-02-20
•
Granted: 1970-03-31
•
Expires: 1988-02-20
Abstract
No abstract record available.
Inventors
- 👤 Masaru Aoki
- 👤 Osamu Kimura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:32
CPC Classifications
A; A63; A63H; A63H30/00; A63H30/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2618889A
Cited
US3199249A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-30 | 1973-09-29 | 1974-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-30 | 1977-09-29 | 1978-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-30 | 1981-09-29 | 1982-03-31 | $7700.00 | Window Closed / Lapsed |