US3053604A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing multicolored cellulose fabrics with indocarbon black sulfur dye
Assignee: Lockheed Martin Corp
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Filing: 1959-07-22
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Granted: 1962-09-11
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Expires: 1979-07-22
Abstract
No abstract record available.
Inventors
- 👤 Glenn F Womble
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:50
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/0096; D06P1/30; D06P3/00; D06P3/58; D06P3/60; D06P3/68; D06P3/82; D06P3/854; Y; Y10; Y10S; Y10S534/00; Y10S534/01; Y10S8/00; Y10S8/916; Y10S8/918
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
AN IMPROVED METHOD OF MANUFACTURING MULTICOLOR DYED CELLULOSE FABRIC, SAID FABRIC BEING PARTICULARLY CHARACTERIZED IN THAT THE COLORS DO NOT NOTICEABLY BLEED INTO EACH OTHER, COMPRISING THE STEPS OF IMMERSING A FIRST CELLULOSIC YARN INTO A DYEBATH CONTAINING THE FULLY REDUCED FORM OF INDOCARBON BLACK SULFUR DYE, OXIDIZING SAID DYESTUFF TO THE INTERMIDIATE STAGE OF OXIDATION, TREATING SAID YARN WITH A DIAZOTIZED AMINE, RINSING THE YARN, SOAPING THE YARN UNDER ALKALINE CONDITIONS AND AGAIN RINSING THE YARN, FORMING SAID FIRST YARN AND A SECOND UNDYED CELLULOSIC YARN INTO A FABRIC, AND THEREAFTER DYEING SAID FABRIC WITH A DYESTUFF SELECTED FROM THE GROUP CONSISTING OF SULFUR DYESTUFF AND VAT DYESTUFF IN A CONVENTIONAL MANNER.
Claim 2
Dependent Claim
113 words
AN IMPROVED METHOD OF MANUFACTURING MULTICOLOR DYED CELLULOSE FABRIC, SAID FABRIC BEING PARTICULARLY CHARACTERIZED IN THAT THE COLORS DO NOT NOTICEABLY BLEED INTO EACH OTHER, COMPRISING THE STEPS OF IMMERSING A FIRST CELLULOSIC YARN INTO A DYEBATH CONTAINING THE FULLY REDUCED FORM OF INDOCARBON BLACK SULFUR DYE, OXIDIZING SAID DYESTUFF TO THE INTERMIDIATE STAGE OF OXIDATION, TREATING SAID YARN WITH A DIAZOTIZED AMINE, RINSING THE YARN, SOAPING THE YARN UNDER ALKALINE CONDITIONS AND AGAIN RINSING THE YARN, FORMING SAID FIRST YARN AND A SECOND UNDYED CELLULOSIC YARN INTO A FABRIC, AND THEREAFTER DYEING SAID FABRIC WITH A DYESTUFF SELECTED FROM THE GROUP CONSISTING OF SULFUR DYESTUFF AND VAT DYESTUFF IN A CONVENTIONAL MANNER.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-10 | 1966-03-12 | 1966-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-10 | 1970-03-12 | 1970-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-10 | 1974-03-12 | 1974-09-11 | $7700.00 | Window Closed / Lapsed |