US2631739A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Uncoupling mechanism for toy railroad cars
Assignee: Lionel Corp
•
Filing: 1949-10-04
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Granted: 1953-03-17
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Expires: 1969-10-04
Abstract
No abstract record available.
Inventors
- 👤 Joseph L Bonanno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 00:19
CPC Classifications
B; B61; B61G; B61G7/00; B61G7/04; A; A63; A63H; A63H19/00; A63H19/16; A63H19/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US365738A
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US535361A
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US1989804A
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US1953676A
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US1958662A
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US2305135A
Cited
US2318741A
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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) | 1956-03-16 | 1956-09-15 | 1957-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-16 | 1960-09-15 | 1961-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-16 | 1964-09-15 | 1965-03-17 | $7700.00 | Window Closed / Lapsed |