Patent US2909847A successfully refreshed from Google Patents.
US2909847A
Expired / Lapsed
US
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Dryer section arrangement for paper machines
Assignee: Beloit Iron Works Inc
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Filing: 1955-10-17
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Granted: 1959-10-27
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Expires: 1975-10-17
Abstract
No abstract record available.
Inventors
- 👤 Hornbostel Lloyd
- 👤 Edgar J Justus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:14
CPC Classifications
D; D21; D21F; D21F5/00; D21F5/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1890832A
Cited
US1199394A
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US1524507A
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US1582892A
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US2000546A
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US1920870A
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US2019649A
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US2437254A
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US2433122A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-26 | 1963-04-27 | 1963-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-26 | 1967-04-27 | 1967-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-26 | 1971-04-27 | 1971-10-27 | $7700.00 | Window Closed / Lapsed |