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US2981031A
Expired / Lapsed
US
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Automatic tie-dumping system
Assignee: Lionel Corp
•
Filing: 1957-09-09
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Granted: 1961-04-25
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Expires: 1977-09-09
Abstract
No abstract record available.
Inventors
- 👤 Joseph L Bonanno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:57
CPC Classifications
A; A63; A63H; A63H19/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1729600A
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US1908673A
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US2072374A
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US2194144A
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US2277455A
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US2290844A
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US2608938A
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US2380174A
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US2581201A
Cited
US2844911A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-24 | 1964-10-24 | 1965-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-24 | 1968-10-24 | 1969-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-24 | 1972-10-24 | 1973-04-25 | $7700.00 | Window Closed / Lapsed |