← Back to Patent Explorer
US3192195A Expired / Lapsed US ⏱️ 0.0 years remaining

Azostyryl cationic dyes

Assignee: EIDP Inc
•
Filing: 1962-10-22
•
Granted: 1965-06-29
•
Expires: 1982-10-22
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Coe David Gordon

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 11:31
CPC Classifications
C; C09; C09B; C09B44/00; C09B44/02; C09B44/06

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 5 words
A CATION OF THE FORMULA
Claim 2
Dependent Claim 5 words
A CATION OF THE FORMULA

References Cited (Backward Citations)

US2083619A Cited
US2864813A Cited
US2893816A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1968-06-28 1968-12-28 1969-06-29 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1972-06-28 1972-12-28 1973-06-29 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1976-06-28 1976-12-28 1977-06-29 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag