US2589988A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coal delivery truck and depositing conveyer
Assignee: THOMAS WRIGHT CO Inc
•
Filing: 1947-10-02
•
Granted: 1952-03-18
•
Expires: 1967-10-02
Abstract
No abstract record available.
Inventors
- 👤 Samuel J Bruno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:28
CPC Classifications
B; B60; B60P; B60P1/00; B60P1/56
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2056875A
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US2275799A
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US2300753A
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US2410996A
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US2484689A
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US2431000A
Cited
US2464217A
Cited
US2490212A
Cited
US2458031A
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 |