Patent US2965168A successfully refreshed from Google Patents.
US2965168A
Expired / Lapsed
US
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Instrument control of freeness on the fourdrinier wire
Assignee: Beloit Iron Works Inc
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Filing: 1957-06-04
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Granted: 1960-12-20
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Expires: 1977-06-04
Abstract
No abstract record available.
Inventors
- 👤 Edward D Beachler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:17
CPC Classifications
D; D21; D21F; D21F1/00; D21F1/0009
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1876563A
Cited
US1686217A
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US1933814A
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US2051202A
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GB623492A
Cited
US2666368A
Cited
US2686462A
Cited
US2729147A
Cited
US2774284A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-20 | 1964-06-20 | 1964-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-20 | 1968-06-20 | 1968-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-20 | 1972-06-20 | 1972-12-20 | $7700.00 | Window Closed / Lapsed |