Patent US3944711A successfully refreshed from Google Patents.
US3944711A
Expired / Lapsed
US
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Transparency
Assignee: Xerox Corp
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Filing: 1974-05-01
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Granted: 1976-03-16
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Expires: 1994-05-01
Abstract
Abstract A transparency is disclosed, which is suitable for use in a multicolored xerographic reproduction process comprising a transparent, thermoplastic film sheet having at least one surface coated with a material selected from the group of nonvolatile amine compounds. The coated transparency, when used in a multicolored electrostatic copying process improves adhesion of the multicolored image thereon and permits reproduction of colors and color densities in said image which correspond well to the copied multicolored original.
Inventors
- 👤 Richard A. Parent
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:38
CPC Classifications
B; B41; B41M; B41M1/00; B41M1/26; B41M1/30; G; G03; G03G; G03G7/00; G03G7/0006; G03G7/002; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31507; Y10T428/31786
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
54 words
A transparency for the formation of an adherent electrostatic image thereon comprising a thermoplastic film sheet, said sheet having at least one surface coated with a nonvolatile aliphatic amine compound selected from the group consisting of 1,8-diamino octane, n-octadecyl amine, n-dodecyl amine and mixtures thereof, said coating having a thickness of above 0.1 mil.
Claim 2
Dependent Claim
54 words
A transparency for the formation of an adherent electrostatic image thereon comprising a thermoplastic film sheet, said sheet having at least one surface coated with a nonvolatile aliphatic amine compound selected from the group consisting of 1,8-diamino octane, n-octadecyl amine, n-dodecyl amine and mixtures thereof, said coating having a thickness of above 0.1 mil.
Claim 3
Dependent Claim
20 words
A transparency as set forth in claim 1 wherein said thermoplastic film sheet is a polysulfone, polycarbonate, or polyester material.
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) | 1979-03-16 | 1979-09-15 | 1980-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-16 | 1983-09-15 | 1984-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-16 | 1987-09-15 | 1988-03-16 | $7700.00 | Window Closed / Lapsed |