US3201189A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for dyeing polypropylene fibers with acid dyestuffs in the presence of a water soluble thiocyanate
Assignee: GAF Chemicals Corp
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Filing: 1963-12-05
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Granted: 1965-08-17
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Expires: 1983-12-05
Abstract
No abstract record available.
Inventors
- 👤 Henry R Mautner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:21
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/44; D06P1/673; D06P1/67333; D06P1/6735; D06P1/67375; Y; Y10; Y10S; Y10S8/00; Y10S8/09; Y10S8/937
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
31 words
A PROCESS FOR DYEING A POLYPROPYLENE FIBER COMPRISING TREATING THE FIBER WITH AN ACIDIC AQUEOUS MEDIUM CONSISTING ESENTIALLY OF AN AQUEOUS SOLUTION OF AN ACID DYE AND A WATER SOLUBLE THIOCYANATE.
Claim 2
Dependent Claim
31 words
A PROCESS FOR DYEING A POLYPROPYLENE FIBER COMPRISING TREATING THE FIBER WITH AN ACIDIC AQUEOUS MEDIUM CONSISTING ESENTIALLY OF AN AQUEOUS SOLUTION OF AN ACID DYE AND A WATER SOLUBLE THIOCYANATE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-16 | 1969-02-15 | 1969-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-16 | 1973-02-15 | 1973-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-16 | 1977-02-15 | 1977-08-17 | $7700.00 | Window Closed / Lapsed |