US3769055A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for the preparation of an overglaze ceramic decalcomania
Assignee: Commercial Decal Inc
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Filing: 1971-10-27
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Granted: 1973-10-30
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Expires: 1991-10-27
Abstract
Abstract A method for the preparation of an overglaze ceramic decalcomania is provided wherein a wet ink formulation containing a liquid printing vehicle or medium and an oxide coloring agent, free of glass, is wet printed on a decalcomania backing sheet to form a wet design layer thereon free of glass, and a protective coating of prefused glass flux is separately deposited on the wet design layer, so that when the design layer and protective coating deposited thereon is positioned on a glazed piece of ware and fired, the protective coating of prefused glass flux fuses and tightly binds the design layer to the ware.
Inventors
- 👤 L Blanco
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:50
CPC Classifications
B; B44; B44C; B44C1/00; B44C1/16; B44C1/165; B44C1/17; B44C1/1712; B41; B41M; B41M3/00; B41M3/12
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
30 words
The method in accordance with claim 1, which comprises forming the wet ink formulation by mixing the coloring agent in a wet printing medium of drying oils, varnishes or resins.
Claim 2
Dependent Claim
31 words
The method in accordance with claim 1, wherein the protective coating consists essentially of prefused glass and pigment, prefused glass in printing varnish or prefused glass and pigment in printing varnish.
Claim 3
Dependent Claim
24 words
The method in accordance with claim 1, wherein the prefused glass flux is applied over the wet design by silk screening or offset printing.
Claim 4
Dependent Claim
26 words
The method in accordance with claim 1, wherein the design layer formed has a thickness within the range of from about 2 to about 8 microns.
Claim 5
Dependent Claim
31 words
The method in accordance with claim 1, wherein the ratio of thickness of the glass-protective coating to the design layer is within the range of from about 2:1 to about 3.5:1.
References Cited (Backward Citations)
US2734840A
Cited
AU117216A
Cited
GB278801A
Cited
US1651470A
Cited
US2008763A
Cited
US2175209A
Cited
US2502758A
Cited
US2992937A
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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) | 1976-10-29 | 1977-04-30 | 1977-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-29 | 1981-04-30 | 1981-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-29 | 1985-04-30 | 1985-10-30 | $7700.00 | Window Closed / Lapsed |