US3919214A
Expired / Lapsed
US
⏱️ 0.0 years remaining
1,2,4-benzotriazinium-dyestuffs
Assignee: Bayer AG
•
Filing: 1973-08-22
•
Granted: 1975-11-11
•
Expires: 1993-08-22
Abstract
Abstract Benzotriazinium dyestuffs of the formula WHEREIN THE RADICALS HAVE THE BELOW MENTIONED MEANING, ARE SUITABLE FOR DYEING AND PRINTING OF NATURAL AND SYNTHETIC MATERIALS, PARTICULARLY OF POLYACRYLNITRILE, COPOLYMERS OF ACRYLNITRILE WITH OTHER VINYL COMPOUNDS, OF ACID MODIFIED POLYESTERS AND ACID MODIFIED POLYAMIDES.
Inventors
- 👤 Klaus Leverenz
- 👤 Karl-Heinz Schundehutte
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:50
CPC Classifications
C; C07; C07D; C07D253/00; C07D253/08; C07D253/10; C07D471/00; C07D471/02; C07D471/04; C07D487/00; C07D487/02; C07D487/04; C09; C09B; C09B43/00; C09B57/00; D; D06; D06P; D06P3/00; D06P3/34; D06P3/52; D06P3/522; D06P3/70; D06P3/76; Y; Y10; Y10S; Y10S8/00; Y10S8/92; Y10S8/922; Y10S8/924; Y10S8/927
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
4 words
DYESTUFF OF THE FORMULA
Claim 2
Dependent Claim
4 words
DYESTUFF OF THE FORMULA
Claim 3
Dependent Claim
7 words
Dyestuff of claim 1 of the formula
Claim 4
Dependent Claim
8 words
Benzotriazinium dyestuff of claim 1 of the formula
Claim 5
Dependent Claim
10 words
A benzotriazinium dyestuff according to claim 1 of the formula:
Claim 6
Dependent Claim
10 words
A benzotriazinium dyestuff according to claim 1 of the formula:
Claim 7
Dependent Claim
10 words
A benzotriazinium dyestuff according to claim 1 of the formula:
Claim 8
Dependent Claim
11 words
A benzotriazinium dyestuff according to claim 1 of the the formula:
Claim 9
Dependent Claim
10 words
A benzotriazinium dyestuff according to claim 1 of the formula:
References Cited (Backward Citations)
US3349088A
Cited
US3423409A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-11-10 | 1979-05-12 | 1979-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-10 | 1983-05-12 | 1983-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-10 | 1987-05-12 | 1987-11-11 | $7700.00 | Window Closed / Lapsed |