US4259675A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Jet ink process
Assignee: Primerica Inc
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Filing: 1979-12-31
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Granted: 1981-03-31
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Expires: 1999-12-31
Abstract
Abstract An ink composition for use in jet printing comprising an aqueous solution of a water-soluble dye and a humectant consisting of at least one member of the group consisting of organic phosphonates and organic phosphites.
Inventors
- 👤 Ishwar R. Mansukhani
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:00
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/30; C09D11/38
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
70 words
In a process for information recording comprising producing a fine jet of colored aqueous liquid, directing the jet of colored liquid onto a recording medium, and modulating the density of the jet by applying an electric field in accordance with information to be recorded, the improvement comprising the step of including in the liquid a humectant selected from the group consisting of dialkyl phosphonates and dialkyl phosphites, and mixtures thereof.
Claim 2
Dependent Claim
70 words
In a process for information recording comprising producing a fine jet of colored aqueous liquid, directing the jet of colored liquid onto a recording medium, and modulating the density of the jet by applying an electric field in accordance with information to be recorded, the improvement comprising the step of including in the liquid a humectant selected from the group consisting of dialkyl phosphonates and dialkyl phosphites, and mixtures thereof.
Claim 3
Dependent Claim
11 words
The process of claim 1 wherein the humectant is diethyl ethylphosphonate.
Claim 4
Dependent Claim
11 words
The process of claim 1 wherein the humectant is dimethyl methylphosphonate.
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) | 1984-03-30 | 1984-09-29 | 1985-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-30 | 1988-09-29 | 1989-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-30 | 1992-09-29 | 1993-03-31 | $7700.00 | Window Closed / Lapsed |