Patent US2500180A successfully refreshed from Google Patents.
US2500180A
Expired / Lapsed
US
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Coupling for toy trains
Assignee: Individual
•
Filing: 1945-09-21
•
Granted: 1950-03-14
•
Expires: 1965-09-21
Abstract
No abstract record available.
Inventors
- 👤 Hubbell Harvey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:14
CPC Classifications
A; A63; A63H; A63H19/00; A63H19/16; A63H19/18; Y; Y10; Y10S; Y10S206/00; Y10S206/818
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2226287A
Cited
US2277455A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-03-13 | 1953-09-12 | 1954-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-03-13 | 1957-09-12 | 1958-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-03-13 | 1961-09-12 | 1962-03-14 | $7700.00 | Window Closed / Lapsed |