US5288570A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite black and white substrate for color proofing films
Assignee: CNA Holdings LLC
•
Filing: 1992-08-12
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Granted: 1994-02-22
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Expires: 2012-08-12
Abstract
Abstract A composite film article which is a flexible, heat resistant polymeric film material having a non-opaque, partially translucent white surface side, having a visible light opacity of from about 0.90 to about 0.99; and a non-opaque, black surface side having a visible light opacity of less than 1.0, a transmission density of less than about 2.0 and a thickness of less than about 5.0 microns. The article may be used as a base for images such that the images have a reduced optical dot gain.
Inventors
- 👤 Robert J. von Trebra
- 👤 Dennis J. Bellville
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:20
CPC Classifications
G; G03; G03F; G03F3/00; G03F3/10; Y; Y10; Y10S; Y10S430/00; Y10S430/14; Y10S430/151; Y10S430/153; Y10T; Y10T428/00; Y10T428/31
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
66 words
A composite film article comprising a flexible, heat resistant, polymeric film material having two sides, a first non-opaque, translucent white side, having a visible light opacity of from about 0.90 to about 0.99; and a second non-opaque, black side having a visible light opacity of less than 1.0, a transmission density of less than about 2.0 and a thickness of less than about 5 0 microns.
Claim 2
Dependent Claim
66 words
A composite film article comprising a flexible, heat resistant, polymeric film material having two sides, a first non-opaque, translucent white side, having a visible light opacity of from about 0.90 to about 0.99; and a second non-opaque, black side having a visible light opacity of less than 1.0, a transmission density of less than about 2.0 and a thickness of less than about 5 0 microns.
Claim 3
Dependent Claim
21 words
The article of claim 1 wherein the white side has a visible light opacity of from about 0.95 to about 0.99.
Claim 4
Dependent Claim
21 words
The article of claim 1 wherein the white side has a visible light opacity of from about 0.95 to about 0.98.
Claim 5
Dependent Claim
28 words
The article of claim 1 wherein the black side has a visible light opacity of from about 0.30 to about 0.99, a transmission 1.0 to about 5.0 microns.
Claim 6
Dependent Claim
21 words
The article of claim 4 wherein the black side has a visible light opacity of from about 0.4 to about 0.99.
Claim 7
Dependent Claim
21 words
The article of claim 4 wherein the black side has a visible light opacity of from about 0.4 to about 0.95.
Claim 8
Dependent Claim
24 words
The article of claim 1 wherein the polymeric film material comprises a single integral polymeric sheet having one white side and one black side.
Claim 9
Dependent Claim
25 words
The article of claim 1 wherein the polymeric film material comprises a single, white, integral polymeric sheet having a black coating on one side thereof.
Claim 10
Dependent Claim
25 words
The article of claim 1 wherein the polymeric film material comprises a single, black, integral polymeric sheet having a white coating on one side thereof.
Claim 11
Dependent Claim
24 words
The article of claim 1 wherein the polymeric film material comprises a white polymeric sheet and a black polymeric sheet adhered at an interface.
Claim 12
Dependent Claim
30 words
The article of claim 1 further comprising an additional non-opaque, translucent white side material having a visible light opacity of from about 0.90 to about 0.99 on said black side.
Claim 13
Dependent Claim
25 words
The article of claim 11 wherein the polymeric film material comprises a single, black polymeric sheet having a white coating on both opposite sides thereof.
Claim 14
Dependent Claim
28 words
The article of claim 11 wherein the polymeric film material comprises two while polymeric sheets adhered at an interface to the opposite sides of a black polymeric sheet.
Claim 15
Dependent Claim
20 words
An element which comprises the article of claim 1 and an image disposed on the white side of said article.
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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) | 1997-02-21 | 1997-08-23 | 1998-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-02-21 | 2001-08-23 | 2002-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-02-21 | 2005-08-23 | 2006-02-22 | $7700.00 | Window Closed / Lapsed |