US4756633A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inking ribbon including a sublimable release layer for color transfer under the influence of heat
Assignee: Individual
•
Filing: 1987-08-19
•
Granted: 1988-07-12
•
Expires: 2007-08-19
Abstract
Abstract An improved inking ribbon for color transfer under the influence of heat comprises the ribbon having a carrier layer and a colored layer with the heat-soluble release layer interposed therebetween, which release layer is composed of a sublimable material to avoid renewed adhesion of the released portion of the color layer to the inking ribbon after a color transfer to the printing medium has occured.
Inventors
- 👤 Friedrich-Wilhelm Drees
- 👤 Hartmut Grethen
- 👤 Friedrich Hagemeyer
- 👤 Wolfgang Pekruhn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:47
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/26; B41M5/40; B41M5/42; B41M5/423; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10S428/914
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
42 words
In an inking ribbon for color transfer under the influence of heat, said ribbon comprising a carrier layer, a heat-soluble release layer on the carrier layer for adhering a color layer, the improvement comprising the release layer being made of sublimable material.
Claim 2
Dependent Claim
42 words
In an inking ribbon for color transfer under the influence of heat, said ribbon comprising a carrier layer, a heat-soluble release layer on the carrier layer for adhering a color layer, the improvement comprising the release layer being made of sublimable material.
Claim 3
Dependent Claim
17 words
In an inking ribbon according to claim 1, wherein the release layer is composed of 2-chloroacrylic acid.
Claim 4
Dependent Claim
16 words
In an inking ribbon according to claim 1, wherein the release layer is composed of 5-nitroquiniline.
Claim 5
Dependent Claim
16 words
In an inking ribbon according to claim 1, wherein the release layer is composed of 2-chloro-analine-N-acetate.
Claim 6
Dependent Claim
24 words
In an inking ribbon according to claim 1, wherein the release layer is sublimable in a temperature range between 50° C. and 90° C.
Claim 7
Dependent Claim
17 words
In an inking ribbon according to claim 5, wherein the release layer is composed of 2-chloroacrylic acid.
Claim 8
Dependent Claim
16 words
In an inking ribbon according to claim 5, wherein the release layer is composed of 5-nitroquiniline.
Claim 9
Dependent Claim
16 words
In an inking ribbon according to claim 5, wherein he release layer is composed of 2-chloro-analine-N-acetate.
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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) | 1991-07-12 | 1992-01-11 | 1992-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-07-12 | 1996-01-11 | 1996-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-07-12 | 2000-01-11 | 2000-07-12 | $7700.00 | Window Closed / Lapsed |