US3279879A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the fixation of dyes on cel- lulose and fixing agent therefor
Assignee: —
•
Filing: —
•
Granted: 1966-10-18
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Expires: 1983-10-18
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:02
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/38; D06P1/44; D06P1/46; D06P1/48; D06P1/64; D06P1/642; D06P1/6429; D06P1/655; D06P1/66; D06P1/673; D06P1/67333; D06P1/6735; D06P3/00; D06P3/58; D06P3/60; D06P3/66; D06P5/00; D06P5/22; Y; Y10; Y10S; Y10S8/00; Y10S8/916; Y10S8/918
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
A PROCESS FOR CHEMICALLY FIXING DYES ON NATURAL OR REGENERATED CELLULOSE MATERIALS WHICH COMPRISES ADDING TO AN AQUEOUS ALKALINE DYEING MEDIUM HAVING DISSOLVED THEREIN A WATER-SOLUBLE ALKYLATABLE DYE, SAID MEDIUM BEING IN CONTACT WITH THE CELLULOSE MATERIAL TO BE DYED, A POLYFUNCTIONAL ALKYLATING AGENT OF THE GENERAL FORMULA
Claim 2
Dependent Claim
48 words
A PROCESS FOR CHEMICALLY FIXING DYES ON NATURAL OR REGENERATED CELLULOSE MATERIALS WHICH COMPRISES ADDING TO AN AQUEOUS ALKALINE DYEING MEDIUM HAVING DISSOLVED THEREIN A WATER-SOLUBLE ALKYLATABLE DYE, SAID MEDIUM BEING IN CONTACT WITH THE CELLULOSE MATERIAL TO BE DYED, A POLYFUNCTIONAL ALKYLATING AGENT OF THE GENERAL FORMULA
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) | 1969-10-17 | 1970-04-18 | 1970-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-17 | 1974-04-18 | 1974-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-17 | 1978-04-18 | 1978-10-18 | $7700.00 | Window Closed / Lapsed |