US3107968A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dyeing of acid-modified acrylic and polyester fibers
Assignee: EIDP Inc
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Filing: 1961-02-17
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Granted: 1963-10-22
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Expires: 1981-02-17
Abstract
No abstract record available.
Inventors
- 👤 Pascal Ivan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:16
CPC Classifications
D; D06; D06P; D06P3/00; D06P3/34; D06P3/52; D06P3/522; D06P1/00; D06P1/44; D06P1/64; D06P1/642; D06P1/6426; D06P3/70; D06P3/76; Y; Y10; Y10S; Y10S8/00; Y10S8/92; Y10S8/922; Y10S8/927
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
42 words
THE METHOD OF ACCELERATING THE DYEING OF TEXTILE FIBER OF THE GROUP CONSISTING OF ACID-MODIFIED POLYESTER FIBER AND ACID-MODIFIED ACRYLIC FIBER WITH A CATIONIC DYE FROM AN AQUEOUS BATH, WHICH COMPRISES EFFECTING THE DYEING IN THE PRESENCE OF A LIQUID PYRIDINE BASE.
Claim 2
Independent Claim
42 words
THE METHOD OF ACCELERATING THE DYEING OF TEXTILE FIBER OF THE GROUP CONSISTING OF ACID-MODIFIED POLYESTER FIBER AND ACID-MODIFIED ACRYLIC FIBER WITH A CATIONIC DYE FROM AN AQUEOUS BATH, WHICH COMPRISES EFFECTING THE DYEING IN THE PRESENCE OF A LIQUID PYRIDINE BASE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-10-21 | 1967-04-22 | 1967-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-21 | 1971-04-22 | 1971-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-21 | 1975-04-22 | 1975-10-22 | $7700.00 | Window Closed / Lapsed |