Patent US3207568A successfully refreshed from Google Patents.
US3207568A
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Azo and anthraquinone dye mixture, dyeing cellulose acetate and polyesters therewith and the product of such dyeing
Assignee: Sandoz AG
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Filing: 1963-12-19
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Granted: 1965-09-21
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Expires: 1983-12-19
Abstract
No abstract record available.
Inventors
- 👤 Lerch Urs
- 👤 Merian Ernest
- 👤 Senn Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:04
CPC Classifications
C; C09; C09B; C09B67/00; C09B67/0033; C09B67/0046; C09B67/0051; C09B1/00; C09B1/16; C09B1/20; C09B1/22; C09B1/50; C09B67/0071; C09B67/008; D; D06; D06P; D06P1/00; D06P1/16; D06P3/00; D06P3/34; D06P3/40; D06P3/42; D06P3/46; D06P3/48; Y; Y10; Y10S; Y10S534/00; Y10S534/01; Y10S8/00; Y10S8/916; Y10S8/918; Y10S8/92; Y10S8/922
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
9 words
DYESTUFF COMPOSITION WHICH COMPRISES DYES OF TE GENERAL FORMULAE
Claim 2
Dependent Claim
9 words
DYESTUFF COMPOSITION WHICH COMPRISES DYES OF TE GENERAL FORMULAE
References Cited (Backward Citations)
US2782187A
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US2990413A
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US2891942A
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US2989363A
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US3042478A
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US3122410A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-20 | 1969-03-22 | 1969-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-20 | 1973-03-22 | 1973-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-20 | 1977-03-22 | 1977-09-21 | $7700.00 | Window Closed / Lapsed |