Patent US2883734A successfully refreshed from Google Patents.
US2883734A
Expired / Lapsed
US
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Paper-maker's wet felt
Assignee: Valmet Fabrics Inc
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Filing: 1955-11-10
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Granted: 1959-04-28
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Expires: 1975-11-10
Abstract
No abstract record available.
Inventors
- 👤 Jr John H Draper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:05
CPC Classifications
D; D21; D21F; D21F1/00; D21F1/10; D21F1/12; D21F7/00; D21F7/08; D21F7/10; Y; Y10; Y10T; Y10T24/00; Y10T24/16; Y10T24/1608; Y10T428/00; Y10T428/24; Y10T428/24777; Y10T428/24785
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US340335A
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US1320996A
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US758572A
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US926004A
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US2106119A
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US2158007A
Cited
US2540874A
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US2748445A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-27 | 1962-10-27 | 1963-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-27 | 1966-10-27 | 1967-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-27 | 1970-10-27 | 1971-04-28 | $7700.00 | Window Closed / Lapsed |