US2679499A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Azo triazine coloring matters
Assignee: Wyeth Holdings LLC
•
Filing: 1952-03-25
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Granted: 1954-05-25
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Expires: 1972-03-25
Abstract
No abstract record available.
Inventors
- 👤 Robert S Long
- 👤 Brody Frederick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:12
CPC Classifications
C; C09; C09B; C09B43/00; C09B43/12; C09B43/136; C09B43/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
24 words
A 2,4,6-SUBSTITUTED 1,3,5-TRIAZINE, AT LEAST ONE OF THE CARBON ATOMS OF THE TRIAZINE RING BEING BONDED TO THE AZO GROUP OF AN ARYLAZO RADICAL.
Claim 2
Dependent Claim
24 words
A 2,4,6-SUBSTITUTED 1,3,5-TRIAZINE, AT LEAST ONE OF THE CARBON ATOMS OF THE TRIAZINE RING BEING BONDED TO THE AZO GROUP OF AN ARYLAZO RADICAL.
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) | 1957-05-24 | 1957-11-23 | 1958-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-24 | 1961-11-23 | 1962-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-24 | 1965-11-23 | 1966-05-25 | $7700.00 | Window Closed / Lapsed |