US3944710A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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 long chain aliphatic hydrocarbons. 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 multicolored original copied.
Inventors
- 👤 Richard A. Parent
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 16:45
CPC Classifications
C; C08; C08J; C08J7/00; C08J7/04; C08J7/06; C08J7/065; B; B41; B41M; B41M1/00; B41M1/26; B41M1/30; C08J7/043; G; G03; G03G; G03G7/00; G03G7/0006; G03G7/002; C08J2367/00; C08J2369/00; C08J2381/00; C08J2381/06; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31507; Y10T428/31786
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
46 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 long chain aliphatic hydrocarbon having a melting point of above 40°C., said coating having a thickness of above 0.1 mil.
Claim 2
Dependent Claim
46 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 long chain aliphatic hydrocarbon having a melting point of above 40°C., said coating having a thickness of above 0.1 mil.
Claim 3
Dependent Claim
15 words
A transparency as set forth in claim 1 wherein the aliphatic hydrocarbon material is octacosane.
Claim 4
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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Cited
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Cited
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 |