Patent US4168978A successfully refreshed from Google Patents.
US4168978A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transfer foil
Assignee: CLAUS KOENIG KG
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Filing: 1977-11-23
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Granted: 1979-09-25
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Expires: 1997-11-23
Abstract
Abstract Composite foils for producing colored advertising indicia comprise a colored, tacky layer between two release foils, the colored layer being sensitive to light either as being solubilized in exposed areas, these areas being washed away to leave the indicia, or as being insolubilized by exposure, the unexposed areas being washed away.
Inventors
- 👤 Claus Koenig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:52
CPC Classifications
G; G03; G03C; G03C11/00; G03C11/12; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10S428/914; Y10T; Y10T428/00; Y10T428/14; Y10T428/1467; Y10T428/24; Y10T428/24802; Y10T428/24835
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
134 words
A colored multilayered structure for producing a pattern comprising: (a) a light sensitive colored layer comprising a contact adhesive, a coloring agent, and a light sensitive compound; said colored layer exhibiting upon exposure to light a change with respect to a given solvent from soluble to insoluble in exposed areas but remaining soluble in the same solvent in unexposed areas, the soluble unexposed areas being removable after exposure by washing with said solvent; (b) a first foil disposed on one surface of said colored layer; and (c) a second foil disposed on the other surface of said colored layer; said first and second foils having release characteristics and one of said foils being more readily removable from said colored layer than the other of said foils; at least one of said foils being transparent.
Claim 2
Dependent Claim
134 words
A colored multilayered structure for producing a pattern comprising: (a) a light sensitive colored layer comprising a contact adhesive, a coloring agent, and a light sensitive compound; said colored layer exhibiting upon exposure to light a change with respect to a given solvent from soluble to insoluble in exposed areas but remaining soluble in the same solvent in unexposed areas, the soluble unexposed areas being removable after exposure by washing with said solvent; (b) a first foil disposed on one surface of said colored layer; and (c) a second foil disposed on the other surface of said colored layer; said first and second foils having release characteristics and one of said foils being more readily removable from said colored layer than the other of said foils; at least one of said foils being transparent.
Claim 3
Dependent Claim
134 words
A colored multilayered structure for producing a pattern comprising: (a) a light sensitive colored layer comprising a contact adhesive, a coloring agent, and a light sensitive compound; said colored layer exhibiting upon exposure to light a change with respect to a given solvent from insoluble to soluble in exposed areas but remaining insoluble in the same solvent in unexposed areas, the soluble exposed areas being removable after exposure by washing with said solvent; (b) a first foil disposed on one surface of said colored layer; and (c) a second foil disposed on the other surface of said colored layer; said first and second foils having release characteristics and one of said foils being more readily removable from said colored layer than the other of said foils; at least one of said foils being transparent.
Claim 4
Dependent Claim
134 words
A colored multilayered structure for producing a pattern comprising: (a) a light sensitive colored layer comprising a contact adhesive, a coloring agent, and a light sensitive compound; said colored layer exhibiting upon exposure to light a change with respect to a given solvent from insoluble to soluble in exposed areas but remaining insoluble in the same solvent in unexposed areas, the soluble exposed areas being removable after exposure by washing with said solvent; (b) a first foil disposed on one surface of said colored layer; and (c) a second foil disposed on the other surface of said colored layer; said first and second foils having release characteristics and one of said foils being more readily removable from said colored layer than the other of said foils; at least one of said foils being transparent.
Claim 5
Dependent Claim
14 words
The colored multilayered structure of claim 2 wherein said solvent is a developing liquid.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-09-24 | 1983-03-26 | 1983-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-09-24 | 1987-03-26 | 1987-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-09-24 | 1991-03-26 | 1991-09-25 | $7700.00 | Window Closed / Lapsed |