US2848296A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the basic dyeing of vinylidene cyanide interpolymers
Assignee: Goodrich Corp
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Filing: 1955-11-17
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Granted: 1958-08-19
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Expires: 1975-11-17
Abstract
No abstract record available.
Inventors
- 👤 Heller Hansjorg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:46
CPC Classifications
D; D06; D06P; D06P5/00; D06P5/02; D06P1/00; D06P1/44; D06P1/64; D06P1/642; D06P1/647; D06P1/653; D06P1/6536; D06P3/00; D06P3/70; D06P3/76; Y; Y10; Y10S; Y10S8/00; Y10S8/92
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
33 words
THE PROCESS OF DYEING VINYLIDENE CYANIDE INTERPOLYMER TEXTILES WHICH COMPRISES TREATING SAID TEXTILES WITH A BASIC DYE IN THE PRESENCE OF AN ADDITIVE SELECTED FROM THE CLASS CONSISTING OF 2-HYDORXY-3-NAPTHOIC ACID AND NBETA-NAPTHYL-BETA-ALANINE.
Claim 2
Dependent Claim
33 words
THE PROCESS OF DYEING VINYLIDENE CYANIDE INTERPOLYMER TEXTILES WHICH COMPRISES TREATING SAID TEXTILES WITH A BASIC DYE IN THE PRESENCE OF AN ADDITIVE SELECTED FROM THE CLASS CONSISTING OF 2-HYDORXY-3-NAPTHOIC ACID AND NBETA-NAPTHYL-BETA-ALANINE.
References Cited (Backward Citations)
FR1093276A
Cited
US2270706A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-18 | 1962-02-17 | 1962-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-18 | 1966-02-17 | 1966-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-18 | 1970-02-17 | 1970-08-19 | $7700.00 | Window Closed / Lapsed |