US3658747A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Soluble dyes for anionically polymerized (ap) nylon
Assignee: Honeywell International Inc
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Filing: 1969-12-22
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Granted: 1972-04-25
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Expires: 1989-12-22
Abstract
Abstract COMPOSITION OF POLYCARPROAMIDE AND A DYESTUFF HAVING A COLOR ESSENTIALLY THE SAME AS THE COLOR OF THE PRECURSO POLYMERIZATION MIXTURE, PREPARED BY ANIONIC POLYMERIZATION OF CAPROLACTAM IN THE PRESENCE OF SPECIFIC SOLUBLE DYES.
Inventors
- 👤 John M Kolyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 16:43
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/0008; C08K5/0041
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-04-25 | 1975-10-25 | 1976-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-25 | 1979-10-25 | 1980-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-25 | 1983-10-25 | 1984-04-25 | $7700.00 | Window Closed / Lapsed |