US2460448A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for breaking fibrous materials
Assignee: Individual
•
Filing: 1943-08-31
•
Granted: 1949-02-01
•
Expires: 1963-08-31
Abstract
No abstract record available.
Inventors
- 👤 John V Cook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 02:24
CPC Classifications
D; D01; D01B; D01B1/00; D01B1/10; D01B1/14; D01B1/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2980A
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US524829A
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US1973583A
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US1981575A
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US2197683A
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US2233753A
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US2264236A
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US2263591A
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US2222793A
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US2288652A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-02-01 | 1952-08-02 | 1953-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-02-01 | 1956-08-02 | 1957-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-02-01 | 1960-08-02 | 1961-02-01 | $7700.00 | Window Closed / Lapsed |