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US2660935A
Expired / Lapsed
US
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Apparatus for forming fiber mats, including deckle boxes with white water return
Assignee: Chapman Forest Utilization Inc
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Filing: 1948-12-20
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Granted: 1953-12-01
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Expires: 1968-12-20
Abstract
No abstract record available.
Inventors
- 👤 Chapman Ralph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:49
CPC Classifications
D; D21; D21F; D21F1/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1161125A
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US1845533A
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US1787341A
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US1806024A
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US2045163A
Cited
GB455601A
Cited
US2283155A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-30 | 1957-06-01 | 1957-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-30 | 1961-06-01 | 1961-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-30 | 1965-06-01 | 1965-12-01 | $7700.00 | Window Closed / Lapsed |