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US3707346A Expired / Lapsed US ⏱️ 0.0 years remaining

Sublimatory transfer dyeing with 2-cyano-1,4-diamino anthraquinones

Assignee: Novartis AG
•
Filing: 1971-01-12
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Granted: 1972-12-26
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Expires: 1991-01-12
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Abstract

Abstract NON-TEXTILE SHEET MATERIALS FOR CARRYING OUT TRANSFER PRINTING, CHARACTERIZED IN THAT THEY CARY A DYESTUFF OF THE FORMULA 1-(NH2-)(N-1),1-(R1-N(-R2)-)(2-N),2-(NC-)(N-1),2-(Y-)(2-N) ,4-(PHENYL- OR CYCLOHEXYL-NH-)(N-1),4-(R''-N(-R2'')-)(2-N) -ANTHRAQUINONE WHEREIN THE RING A IS AROMATIC OR SATURATED, R1 IS A HYDROGEN ATOM OR AN ALKYL RADICAL CONTAINING 1 TO 6 CARBON ATOMS, R2 REPRESENTS A HYDROGEN ATOM OR AN ALKYL RADICAL CONTAINING 1 TO 6 CARBON ATOMS, Y IS A HYDROGEN, A BROMINE OR A CHLORINE ATOM OR A METHOXY GROUP, R1'' DENOTES A HYDROGEN ATOM OR AN ALKYL RADICAL CONTAINING 1 TO 6 CARBON ATOMS, R2'' REPRESENTS AN ALKYL GROUP CONTAINING 1 TO 6 CARBON ATOMS, AND N IS 1 OR 2, WITH THE PROVISO THAT IF Y IS A HYDROGEN ATOM, THE ALKYL GROUPS PRESENT MUST CONTAIN AT LEAST 3 CARBON ATOMS, OR A MIXTURE OF SUCH DYESTUFFS AND OPTIONALLY OTHER SULIMABLE DYESTUFFS AND/OR OPTICAL BRIGHTENERS.

Inventors

  • 👤 Juergen Markert
  • 👤 Peter Eckert
  • 👤 Angelo Della Casa

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 08:05
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/26; B41M5/382; B41M5/385; B41M5/3852; B41M5/025; B41M5/035; B44; B44C; B44C1/00; B44C1/16; B44C1/165; B44C1/17; B44C1/1712; B44C1/1716; C; C09; C09B; C09B1/00; C09B1/16; C09B1/20; C09B1/22; C09B1/26; C09B1/28; C09B1/32; D; D06; D06P; D06P5/00; D06P5/001; D06P5/003; D06P5/004; D06P5/006; Y; Y10; Y10S; Y10S8/00; Y10S8/92; Y10S8/924; Y10S8/932

Claims Analysis

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1975-12-26 1976-06-26 1976-12-26 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-12-26 1980-06-26 1980-12-26 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-12-26 1984-06-26 1984-12-26 $7700.00 Window Closed / Lapsed

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