Patent US2978289A successfully refreshed from Google Patents.
US2978289A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for coloring cellulose with new triazine dyestuffs
Assignee: Imperial Chemical Industries Ltd
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Filing: 1958-08-04
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Granted: 1961-04-04
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Expires: 1978-08-04
Abstract
No abstract record available.
Inventors
- 👤 Barker Peter William
- 👤 Heslop Robert Norman
- 👤 Poole Victor David
- 👤 Stephen William Elliot
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:40
CPC Classifications
D; D06; D06P; D06P3/00; D06P3/58; D06P3/60; D06P3/66; D06P3/663; C; C09; C09B; C09B67/00; C09B67/0071; Y; Y10; Y10S; Y10S8/00; Y10S8/916; Y10S8/918
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
24 words
A PROCESS FOR COLORING CELLULOSE TEXTILE MATERIALS WHICH COMPRISES IMPREGNATING SAID TEXTILE MATERIALS IN AQUEOUS MEDIUM WITH A WATER-SOLUBLE COLORING MATTER HAVING THE FORMULA
Claim 2
Dependent Claim
24 words
A PROCESS FOR COLORING CELLULOSE TEXTILE MATERIALS WHICH COMPRISES IMPREGNATING SAID TEXTILE MATERIALS IN AQUEOUS MEDIUM WITH A WATER-SOLUBLE COLORING MATTER HAVING THE 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) | 1964-04-03 | 1964-10-03 | 1965-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-03 | 1968-10-03 | 1969-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-03 | 1972-10-03 | 1973-04-04 | $7700.00 | Window Closed / Lapsed |