US3540152A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Toy with variable torque-producing means
Assignee: Mattel Inc
•
Filing: 1968-08-22
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Granted: 1970-11-17
•
Expires: 1988-08-22
Abstract
No abstract record available.
Inventors
- 👤 Janos Beny
- 👤 Donald Charles Hartling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:21
CPC Classifications
A; A63; A63H; A63H31/00; A63H31/08; B; B62; B62D; B62D55/00; B62D55/06; B62D55/07; B62D55/08; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19219; Y10T74/19251; Y10T74/19256; Y10T74/19274
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1780858A
Cited
US1754307A
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US1810450A
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US1979080A
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US2098716A
Cited
US2102624A
Cited
US2540858A
Cited
US3377742A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-16 | 1974-05-18 | 1974-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-16 | 1978-05-18 | 1978-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-16 | 1982-05-18 | 1982-11-17 | $7700.00 | Window Closed / Lapsed |