US2593353A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable plural-stage crushing, screening, and washing plant
Assignee: Grundler Crusher and Pulverizer Co
•
Filing: 1949-09-21
•
Granted: 1952-04-15
•
Expires: 1969-09-21
Abstract
No abstract record available.
Inventors
- 👤 Jr Harry J Shelton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:07
CPC Classifications
B; B02; B02C; B02C21/00; B02C21/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US442765A
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US706197A
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US1611026A
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US1876450A
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US2050458A
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US2117300A
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US2210093A
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US2256731A
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US2276333A
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US2325719A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-15 | 1955-10-15 | 1956-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-15 | 1959-10-15 | 1960-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-15 | 1963-10-15 | 1964-04-15 | $7700.00 | Window Closed / Lapsed |