Patent US3456431A successfully refreshed from Google Patents.
US3456431A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and apparatus for the treatment of a plurality of fibrous or filament-like materials
Assignee: Vepa AG
•
Filing: 1967-05-08
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Granted: 1969-07-22
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Expires: 1987-05-08
Abstract
No abstract record available.
Inventors
- 👤 Heinz Fleissner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:03
CPC Classifications
D; D06; D06B; D06B5/00; D06B5/02; D06B5/06; D06B3/00; D06B3/04; D06B3/10; D06B3/20; D06B3/201; D06B3/203; D06B2700/00; D06B2700/06; Y; Y10; Y10S; Y10S68/00; Y10S68/903
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1008613A
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US1554532A
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US2265273A
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US2315265A
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US2176706A
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US2367730A
Cited
US2587619A
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US2675601A
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US2602723A
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US3087320A
Cited
US3149004A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-21 | 1973-01-20 | 1973-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-21 | 1977-01-20 | 1977-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-21 | 1981-01-20 | 1981-07-22 | $7700.00 | Window Closed / Lapsed |