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Patent US2528189A successfully refreshed from Google Patents.
US2528189A
Expired / Lapsed
US
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Apparatus for the manufacture of paper
Assignee: Beloit Walmsley Ltd
•
Filing: 1945-11-27
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Granted: 1950-10-31
•
Expires: 1965-11-27
Abstract
No abstract record available.
Inventors
- 👤 Temperley John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:12
CPC Classifications
D; D21; D21F; D21F9/00; D21F9/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1211229A
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US1708724A
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US1771600A
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US1766000A
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US1869148A
Cited
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Cited
DE573893C
Cited
US2001208A
Cited
US2036168A
Cited
DE634716C
Cited
US2402063A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-10-30 | 1954-05-01 | 1954-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-30 | 1958-05-01 | 1958-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-30 | 1962-05-01 | 1962-10-31 | $7700.00 | Window Closed / Lapsed |