US3024739A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Independent control of model trains on the same track
Assignee: AC Gilbert Co
•
Filing: 1958-06-04
•
Granted: 1962-03-13
•
Expires: 1978-06-04
Abstract
No abstract record available.
Inventors
- 👤 William R Smith
- 👤 Gabriel R Monaco
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:11
CPC Classifications
A; A63; A63H; A63H19/00; A63H19/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2073443A
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US1778465A
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US1813560A
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US2172468A
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US2708885A
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US2652500A
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DE873670C
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US2754432A
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US2872879A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-03-12 | 1965-09-11 | 1966-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-12 | 1969-09-11 | 1970-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-12 | 1973-09-11 | 1974-03-13 | $7700.00 | Window Closed / Lapsed |