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US3432384A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fine-spreading and retarding device for the pulp suspension stream in a papermaking machine
Assignee: Sulzer Escher Wyss GmbH
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Filing: 1965-06-07
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Granted: 1969-03-11
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Expires: 1985-06-07
Abstract
No abstract record available.
Inventors
- 👤 Hans Dahl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:37
CPC Classifications
D; D21; D21F; D21F1/00; D21F1/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3255074A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-10 | 1972-09-09 | 1973-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-10 | 1976-09-09 | 1977-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-10 | 1980-09-09 | 1981-03-11 | $7700.00 | Window Closed / Lapsed |