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US2642782A
Expired / Lapsed
US
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Fiberboard forming press with loader and unloader
Assignee: Chapman Forest Utilization Inc
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Filing: 1948-04-10
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Granted: 1953-06-23
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Expires: 1968-04-10
Abstract
No abstract record available.
Inventors
- 👤 Chapman Ralph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:39
CPC Classifications
D; D21; D21J; D21J1/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1626419A
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US1005706A
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US1536163A
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US1690152A
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US1485894A
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US1737143A
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US1949917A
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US1881548A
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US2084980A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-22 | 1956-12-22 | 1957-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-22 | 1960-12-22 | 1961-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-22 | 1964-12-22 | 1965-06-23 | $7700.00 | Window Closed / Lapsed |