Patent US4014696A successfully refreshed from Google Patents.
US4014696A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multicolored xerographic transparency utilizing an aliphatic ester coating
Assignee: Xerox Corp
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Filing: 1975-02-05
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Granted: 1977-03-29
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Expires: 1995-02-05
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 long chain aliphatic ester. The ester 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 to the multicolored original.
Inventors
- 👤 Richard A. Parent
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:20
CPC Classifications
G; G03; G03G; G03G13/00; G03G13/01; G03G15/00; G03G15/65; G03G15/6588; G03G15/6591; G03G2215/00; G03G2215/00362; G03G2215/00443; G03G2215/00493; G03G2215/00497
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
140 words
A method of xerographically preparing a color transparency copy comprising the sequence of: a. forming a single color xerographic powder image of a multicolored original to be reproduced; b. transferring the powder image to a transparency comprising a thermoplastic film sheet, said sheet having at least one surface having been coated with a nonvolatile long chain aliphatic ester having a melting point above 40° C wherein said long chain aliphatic ester is selected from the group consisting of glycol monostearate sorbitan tristearate, sorbitan monopalmitate, sorbitan monostearate, ethylene glycol monostearate amd mixtures thereof; and c. then, repeating said sequence in steps (a) and (b), where each sequence corresponds with the formation of a different color to effect multicolor reproduction, said transfer of each developed electrostatic image taking place in registration on the transparency; d. fixing the powder image on the transparency.
Claim 2
Independent Claim
140 words
A method of xerographically preparing a color transparency copy comprising the sequence of: a. forming a single color xerographic powder image of a multicolored original to be reproduced; b. transferring the powder image to a transparency comprising a thermoplastic film sheet, said sheet having at least one surface having been coated with a nonvolatile long chain aliphatic ester having a melting point above 40° C wherein said long chain aliphatic ester is selected from the group consisting of glycol monostearate sorbitan tristearate, sorbitan monopalmitate, sorbitan monostearate, ethylene glycol monostearate amd mixtures thereof; and c. then, repeating said sequence in steps (a) and (b), where each sequence corresponds with the formation of a different color to effect multicolor reproduction, said transfer of each developed electrostatic image taking place in registration on the transparency; d. fixing the powder image on the transparency.
Claim 3
Dependent Claim
48 words
The method of claim 1 wherein the steps of powder image formation and transfer are repeated before the fixing step, each sequence corresponding to the formation of a different color to effect multicolor reproduction, said transfer of each developed electrostatic image taking place in registration on the transparency.
Claim 4
Dependent Claim
14 words
The method of claim 1 wherein the fixing is carried out by vapor fusion.
Claim 5
Dependent Claim
13 words
The method of claim 1 wherein the fixing is carried out by heating.
Claim 6
Dependent Claim
15 words
The method of claim 4 wherein the heat fixing is carried out by roll fusing.
Claim 7
Dependent Claim
15 words
The method of claim 4 wherein the heat fixing is carried out by radiant fusing.
Claim 8
Dependent Claim
24 words
The method of claim 1 wherein the transparency used in the transfer step is a thermoplastic film sheet of polysulfone, polycarbonate, or polyester material.
Claim 9
Dependent Claim
13 words
The method of claim 7 wherein the transparency is a polyester film sheet.
References Cited (Backward Citations)
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US3549360A
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US3535112A
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US3539341A
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US3949148A
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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) | 1980-03-28 | 1980-09-27 | 1981-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-03-28 | 1984-09-27 | 1985-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-03-28 | 1988-09-27 | 1989-03-29 | $7700.00 | Window Closed / Lapsed |