US3917447A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dye compositions
Assignee: Velsicol Chemical LLC
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Filing: 1974-05-14
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Granted: 1975-11-04
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Expires: 1994-05-14
Abstract
Abstract wherein R is alkyl of up to 4 carbon atoms, in a weight ratio of from 4:1 to 1:4. This invention discloses a dye composition comprising one part by weight of a disperse dye and from one to twenty parts by weight of a dye assist consisting of a mixture of butyl benzoate and a compound of the formula
Inventors
- 👤 Remus I Lazar
- 👤 Richard C Reichel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:50
CPC Classifications
D; D06; D06P; D06P3/00; D06P3/34; D06P3/52; D06P3/54; D06P1/00; D06P1/44; D06P1/64; D06P1/651; D06P1/65106
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
37 words
A DYE COMPOSITION COMPRISING ONE PART BY WEIGHT OF A DISPERSE DYE AND FROM ONE TO TWENTY PARTS BY WEIGHT OF A DYE ASSIST CONSISTING OF A MIXTURE OF BUTYL BENZOATE AND A COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
37 words
A DYE COMPOSITION COMPRISING ONE PART BY WEIGHT OF A DISPERSE DYE AND FROM ONE TO TWENTY PARTS BY WEIGHT OF A DYE ASSIST CONSISTING OF A MIXTURE OF BUTYL BENZOATE AND A COMPOUND OF THE FORMULA
Claim 3
Dependent Claim
10 words
The dye composition of claim 1 wherein R is methyl.
Claim 4
Dependent Claim
10 words
The dye composition of claim 1 wherein R is ethyl.
Claim 5
Dependent Claim
10 words
The dye composition of claim 1 wherein R is propyl.
Claim 6
Dependent Claim
10 words
The dye composition of claim 1 wherein R is butyl.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-11-03 | 1979-05-05 | 1979-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-03 | 1983-05-05 | 1983-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-03 | 1987-05-05 | 1987-11-04 | $7700.00 | Window Closed / Lapsed |