US3483576A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for continuously preparing dyed filaments of acrylonitrile polymers
Assignee: Wyeth Holdings LLC
•
Filing: 1965-03-15
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Granted: 1969-12-16
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Expires: 1985-03-15
Abstract
No abstract record available.
Inventors
- 👤 Kazumi Nakagawa
- 👤 Keijiro Kuratani
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:02
CPC Classifications
D; D06; D06P; D06P3/00; D06P3/70; D06P3/702; D01; D01F; D01F6/00; D01F6/02; D01F6/18; D01F6/28; D01F6/38; Y; Y10; Y10S; Y10S8/00; Y10S8/932
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2558735A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-15 | 1973-06-16 | 1973-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-15 | 1977-06-16 | 1977-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-15 | 1981-06-16 | 1981-12-16 | $7700.00 | Window Closed / Lapsed |