Patent US2942661A successfully refreshed from Google Patents.
US2942661A
Expired / Lapsed
US
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Multi-ply sheet former
Assignee: Beloit Iron Works Inc
•
Filing: 1956-12-18
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Granted: 1960-06-28
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Expires: 1976-12-18
Abstract
No abstract record available.
Inventors
- 👤 Edward D Beachler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:32
CPC Classifications
D; D21; D21F; D21F3/00; D21F3/02; D21F3/10; D21F11/00; D21F11/06; D21F11/08; D21F9/00; D21F9/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US507643A
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US2732296A
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US1534620A
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US1715615A
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US2118491A
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US2162097A
Cited
US2286942A
Cited
US2488700A
Cited
US2753766A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-28 | 1963-12-28 | 1964-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-28 | 1967-12-28 | 1968-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-28 | 1971-12-28 | 1972-06-28 | $7700.00 | Window Closed / Lapsed |