Patent US3640995A successfully refreshed from Google Patents.
← Back to Patent Explorer
US3640995A Expired / Lapsed US ⏱️ 0.0 years remaining

Monoazo compounds containing an aroyl-amino - n - alkoxycarbonyl benzylaniline coupling component

Assignee: Novartis Corp
•
Filing: 1968-11-25
•
Granted: 1972-02-08
•
Expires: 1988-11-25
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract AZO COMPOUNDS CONTAINING A PHENYL, THIAZOLYL, BENZOTHIAZOLYL, OR THIENYL DIAZO COMPONENT AND M-AROYLAMINON-ALKOXYCARBONYLBENZYLANILINE COUPLING COMPONET ARE USEFUL AS DYES FOR HYDRPHOBIC TEXTILE MATERIALS.

Inventors

  • 👤 Max A Weaver
  • 👤 Clarence A Coates Jr
  • 👤 Herman S Pridgen

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 14:42
CPC Classifications
C; C09; C09B; C09B29/00; C09B29/0025; C09B29/06; C09B29/08; Y; Y10; Y10S; Y10S8/00; Y10S8/908

Claims Analysis

Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1975-02-07 1975-08-09 1976-02-08 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-02-07 1979-08-09 1980-02-08 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-02-07 1983-08-09 1984-02-08 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag