US5151336A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Masking material
Assignee: Kimoto Co Ltd
•
Filing: 1990-09-10
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Granted: 1992-09-29
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Expires: 2010-09-10
Abstract
Abstract A masking material with a semiopaque layer containing a coloring agent, characterized in that the semiopaque layer permits the transmission of the light at a wavelength corresponding to the "green-lack" wavelength of color paper.
Inventors
- 👤 Toshie Yokosuka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:35
CPC Classifications
G; G03; G03F; G03F1/00; G03F1/68
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
71 words
A masking material for masking a photosensitive color element having three light-sensitive layers for developing cyan, magenta and yellow, respectively, said masking material comprising a layer containing a colorant and blocking transmission of light in those areas of the visible spectrum to which said photosensitive color element is sensitive, while transmitting light within the range of 560-660 nm with a transmission density sufficiently high to avoid fogging of the color element.
Claim 2
Dependent Claim
71 words
A masking material for masking a photosensitive color element having three light-sensitive layers for developing cyan, magenta and yellow, respectively, said masking material comprising a layer containing a colorant and blocking transmission of light in those areas of the visible spectrum to which said photosensitive color element is sensitive, while transmitting light within the range of 560-660 nm with a transmission density sufficiently high to avoid fogging of the color element.
Claim 3
Dependent Claim
17 words
The masking material of claim 1 wherein said colorant comprises an admixture of blue and orange dyes.
Claim 4
Dependent Claim
14 words
The masking material of claim 2 wherein said admixture additionally comprises a yellow dye.
Claim 5
Dependent Claim
14 words
The masking material of claim 2 having a transmission density of greater than 2.0.
References Cited (Backward Citations)
US3887485A
Cited
US4793692A
Cited
JPS61143758A
Cited
US4935166A
Cited
JPS63314553A
Cited
US4937177A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-09-29 | 1996-03-30 | 1996-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-09-29 | 2000-03-30 | 2000-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-09-29 | 2004-03-30 | 2004-09-29 | $7700.00 | Window Closed / Lapsed |