US3457343A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wet spinning process
Assignee: ALGEMEINE KUNSTZIJDE UNIE NV
•
Filing: 1966-08-22
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Granted: 1969-07-22
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Expires: 1986-08-22
Abstract
No abstract record available.
Inventors
- 👤 Otto E Van Lohuizen
- 👤 Pieter Paulusma
- 👤 Gaspard L F Van Kinschot
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:40
CPC Classifications
H; H05; H05B; H05B39/00; H05B39/10; H05B39/105; C; C08; C08L; C08L25/00; C08L25/02; C08L25/04; C08L25/06; C08L71/00; C08L71/08; C08L71/10; C08L71/12; C08L71/123; D; D01; D01F; D01F6/00; D01F6/58; D01F6/66
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3086050A
Cited
US3110548A
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US3219626A
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US3221080A
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US3306875A
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US3342920A
Cited
US3337670A
Cited
US3257357A
Cited
US3342892A
Cited
US3373226A
Cited
US3375228A
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 |