US2934397A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for dyeing polyester fiber
Assignee: EIDP Inc
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Filing: 1955-10-26
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Granted: 1960-04-26
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Expires: 1975-10-26
Abstract
No abstract record available.
Inventors
- 👤 Harold P Landerl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:08
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/44; D06P1/64; D06P1/651; D06P1/65106; D06P1/65125; D06P3/00; D06P3/34; D06P3/40; D06P3/46; D06P3/48; D06P3/52; D06P3/54; Y; Y10; Y10S; Y10S8/00; Y10S8/907; Y10S8/908; Y10S8/92; Y10S8/921; Y10S8/922; Y10S8/924
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
A PROCESS OF DYEING POLYESTER FIBER OF THE GROUP CONSISTING OF POLYETHYLENE-TEREPHTHALATE AND CELLULOSE TRIACETATE, WHICH COMPRISES TREATING THE SAME AT BOILING TEMPERATURE WITH AN AQUEOUS DISPERSION OF A DISPERSE DYE IN THE PRESENCE OF A CARRIER COMPRISING DIMETHYL TEREPHTHALATE, SAID DIMETHYL TEREPHTHALATE BEING PRESENT IN SAID AQUEOUS TREATMENT BATH IN QUANTITY NOT LESS THAN 2 PARTS PER 1000 BY WEIGHT AND BEING DISSOLVED THEREIN TO AN EXTENT NOT LESS THAN 2 PARTS PER 1000 BY WEIGHT.
Claim 2
Dependent Claim
77 words
A PROCESS OF DYEING POLYESTER FIBER OF THE GROUP CONSISTING OF POLYETHYLENE-TEREPHTHALATE AND CELLULOSE TRIACETATE, WHICH COMPRISES TREATING THE SAME AT BOILING TEMPERATURE WITH AN AQUEOUS DISPERSION OF A DISPERSE DYE IN THE PRESENCE OF A CARRIER COMPRISING DIMETHYL TEREPHTHALATE, SAID DIMETHYL TEREPHTHALATE BEING PRESENT IN SAID AQUEOUS TREATMENT BATH IN QUANTITY NOT LESS THAN 2 PARTS PER 1000 BY WEIGHT AND BEING DISSOLVED THEREIN TO AN EXTENT NOT LESS THAN 2 PARTS PER 1000 BY WEIGHT.
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) | 1963-04-26 | 1963-10-26 | 1964-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-26 | 1967-10-26 | 1968-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-26 | 1971-10-26 | 1972-04-26 | $7700.00 | Window Closed / Lapsed |