US4229219A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inks for ink jet printing
Assignee: IBM Information Products Corp
•
Filing: 1979-08-24
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Granted: 1980-10-21
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Expires: 1999-08-24
Abstract
Abstract Inks comprising crystal violet and the n-butyl ether of diethylene glycol exhibits great antimicrobial action and are particularly suited for use in ink jet printing.
Inventors
- 👤 Eric A. Metz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:43
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/30
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
62 words
An ink for use in ink jet printing comprising an aqueous solution of both crystal violet and the n-butyl ether of diethylene glycol, wherein the crystal violet is present in the amount of from about 0.10% to about 10% by weight and the n-butyl ether of diethylene glycol is present in an amount of from about 1% to about 20% by weight.
Claim 2
Dependent Claim
62 words
An ink for use in ink jet printing comprising an aqueous solution of both crystal violet and the n-butyl ether of diethylene glycol, wherein the crystal violet is present in the amount of from about 0.10% to about 10% by weight and the n-butyl ether of diethylene glycol is present in an amount of from about 1% to about 20% by weight.
Claim 3
Dependent Claim
13 words
An ink as claimed in claim 1 which also contains an acid dye.
Claim 4
Dependent Claim
51 words
An ink for use in ink jet printing comprising an aqueous solution of from about 0.5% to about 2% by weight of crystal violet, from about 4% to about 10% by weight of the n-butyl ether of diethylene glycol and from about 4% to about 8% of an acid black dye.
Claim 5
Dependent Claim
51 words
An ink for use in ink jet printing comprising an aqueous solution of from about 0.5% to about 2% by weight of crystal violet, from about 4% to about 10% by weight of the n-butyl ether of diethylene glycol and from about 4% to about 8% of an acid black dye.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-10-21 | 1984-04-21 | 1984-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-10-21 | 1988-04-21 | 1988-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-10-21 | 1992-04-21 | 1992-10-21 | $7700.00 | Window Closed / Lapsed |