US3117831A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coloration of polyacrylonitrile material
Assignee: GAF Chemicals Corp
•
Filing: 1960-08-18
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Granted: 1964-01-14
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Expires: 1980-08-18
Abstract
No abstract record available.
Inventors
- 👤 Henry R Mautner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:59
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/44; D06P1/64; D06P1/642; D06P1/649; D06P1/6494; D06P1/673; D06P1/67333; D06P1/6735; D06P1/67375; D06P3/00; D06P3/70; D06P3/76
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
A PROCESS FOR COLORING A SHAPED STRUCTURE COMPOSED ESSENTIALLY OF A RESINOUS ACETONE INSOLUBLE TERPOLYMER HAVING A SPECIFIC VISCOSITY OF 0.1 TO 0.6 AND CONTAINING IN THE MOLECULE ABOUT 60 TO 75% OF ACRYLONITRILE, 10 TO 30% OF VINYL CHLORIDE, AND 5 TO 20% OF VINYLIDENE CHLORIDE, THE SUM OF SAID COPOLYMERIZED MONOMERS EQUALLING 100%, COMPRISING SUBJECTING SAID STRUCTURE TO TREATMENT IN AQUEOUS MEDIA WITH A BASIC DYE AND ABOUT 1 TO 15% OF A WATER SOLUBLE THIOCYANATE BY WEIGHT OF SAID STRUCTURE.
Claim 2
Dependent Claim
83 words
A PROCESS FOR COLORING A SHAPED STRUCTURE COMPOSED ESSENTIALLY OF A RESINOUS ACETONE INSOLUBLE TERPOLYMER HAVING A SPECIFIC VISCOSITY OF 0.1 TO 0.6 AND CONTAINING IN THE MOLECULE ABOUT 60 TO 75% OF ACRYLONITRILE, 10 TO 30% OF VINYL CHLORIDE, AND 5 TO 20% OF VINYLIDENE CHLORIDE, THE SUM OF SAID COPOLYMERIZED MONOMERS EQUALLING 100%, COMPRISING SUBJECTING SAID STRUCTURE TO TREATMENT IN AQUEOUS MEDIA WITH A BASIC DYE AND ABOUT 1 TO 15% OF A WATER SOLUBLE THIOCYANATE BY WEIGHT OF SAID STRUCTURE.
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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) | 1967-01-13 | 1967-07-15 | 1968-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-13 | 1971-07-15 | 1972-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-13 | 1975-07-15 | 1976-01-14 | $7700.00 | Window Closed / Lapsed |