US2589872A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tail gate control for dump trucks
Assignee: Roots & Schetky Inc
•
Filing: 1948-03-23
•
Granted: 1952-03-18
•
Expires: 1968-03-23
Abstract
No abstract record available.
Inventors
- 👤 John L Schetky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:10
CPC Classifications
B; B60; B60P; B60P1/00; B60P1/04; B60P1/26; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/0911; Y10T292/0945; Y10T292/0946
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1456630A
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US1499155A
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US1686239A
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US1587612A
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US1729375A
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US1830389A
Cited
US1711299A
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US1828797A
Cited
US2299922A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-03-18 | 1955-09-17 | 1956-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-18 | 1959-09-17 | 1960-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-18 | 1963-09-17 | 1964-03-18 | $7700.00 | Window Closed / Lapsed |