Patent US2574630A successfully refreshed from Google Patents.
US2574630A
Expired / Lapsed
US
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Coupler for toy cars and releasing means
Assignee: Individual
•
Filing: 1949-11-10
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Granted: 1951-11-13
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Expires: 1969-11-10
Abstract
No abstract record available.
Inventors
- 👤 Clarence K Edwards
- 👤 Lawrence D Edwards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:24
CPC Classifications
A; A63; A63H; A63H19/00; A63H19/16; A63H19/18; B; B61; B61G; B61G7/00; B61G7/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2288792A
Cited
US1953676A
Cited
US1885813A
Cited
US2102649A
Cited
US2184103A
Cited
US2411394A
Cited
GB605283A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-11-12 | 1955-05-14 | 1955-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-12 | 1959-05-14 | 1959-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-12 | 1963-05-14 | 1963-11-13 | $7700.00 | Window Closed / Lapsed |