US2655340A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Support for semitrailers
Assignee: WEST MICHIGAN STEEL FOUNDRY CO
•
Filing: 1951-10-25
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Granted: 1953-10-13
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Expires: 1971-10-25
Abstract
No abstract record available.
Inventors
- 👤 Thomas B Dalton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:28
CPC Classifications
B; B60; B60S; B60S9/00; B60S9/14; B60S9/16; B60D; B60D1/00; B60D1/58; B60D1/66; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19642; Y10T74/19698; Y10T74/19702; Y10T74/19744; Y10T74/19749
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US691691A
Cited
US1565805A
Cited
US1749066A
Cited
US2052961A
Cited
US2336757A
Cited
US2446517A
Cited
US2550801A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-10-12 | 1957-04-13 | 1957-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-12 | 1961-04-13 | 1961-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-12 | 1965-04-13 | 1965-10-13 | $7700.00 | Window Closed / Lapsed |