US2712388A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control mechanism for wagon box pusher unloader
Assignee: Unisys Corp
•
Filing: 1952-08-01
•
Granted: 1955-07-05
•
Expires: 1972-08-01
Abstract
No abstract record available.
Inventors
- 👤 Lawrence H Skromme
- 👤 West James Rex
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:37
CPC Classifications
B; B60; B60P; B60P1/00; B60P1/006
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1946452A
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US1962228A
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US2258988A
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US2365771A
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US2339360A
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US2480527A
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US2529777A
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US2561755A
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US2607324A
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US2669366A
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US2657009A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-07-04 | 1959-01-03 | 1959-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-07-04 | 1963-01-03 | 1963-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-07-04 | 1967-01-03 | 1967-07-05 | $7700.00 | Window Closed / Lapsed |