US3320020A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition for and dyeing cellulose copper and nickel tetrazaporphin-betaine dye compositions and reactive dyeing cellulose therewith
Assignee: BASF SE
•
Filing: 1964-03-02
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Granted: 1967-05-16
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Expires: 1984-03-02
Abstract
No abstract record available.
Inventors
- 👤 Tartter Arnold
- 👤 Blum Adolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:51
CPC Classifications
C; C09; C09B; C09B47/00; C09B47/04; C09B47/08; C09B47/12; Y; Y10; Y10S; Y10S8/00; Y10S8/916; Y10S8/918
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
26 words
A PROCESS FOR DYEING AND PRINTING CELLULOSIC TEXTILE MATERIAL, WHICH COMPRISES APPLYING TO SAID TEXTILE MATERIAL A COMPOSITION COMPRISING (A) A TETRAZAPORHIN DYE OF THE FORMULA
Claim 2
Dependent Claim
26 words
A PROCESS FOR DYEING AND PRINTING CELLULOSIC TEXTILE MATERIAL, WHICH COMPRISES APPLYING TO SAID TEXTILE MATERIAL A COMPOSITION COMPRISING (A) A TETRAZAPORHIN DYE OF 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) | 1970-05-15 | 1970-11-14 | 1971-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-15 | 1974-11-14 | 1975-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-15 | 1978-11-14 | 1979-05-16 | $7700.00 | Window Closed / Lapsed |