US2589968A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-unloading vehicle body
Assignee: Huron Portland Cement Co
•
Filing: 1946-12-23
•
Granted: 1952-03-18
•
Expires: 1966-12-23
Abstract
No abstract record available.
Inventors
- 👤 Schemm Henry Ripley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:08
CPC Classifications
B; B65; B65D; B65D88/00; B65D88/54; B65D88/72
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US608585A
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US1029273A
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US1465665A
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US1971852A
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US2032367A
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US1971853A
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FR808124A
Cited
US2219283A
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US2316814A
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US2337667A
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 |