Patent CH357109A successfully refreshed from Google Patents.
US2977227A
Expired / Lapsed
US
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Method for fabricating a relief printing plate
Assignee: Chemical Products Corp
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Filing: 1959-02-18
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Granted: 1961-03-28
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Expires: 1979-02-18
Abstract
No abstract record available.
Inventors
- 👤 Maria John De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:42
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/26; G03F7/40; B; B41; B41N; B41N1/00; B41N1/12; B41N3/00; C; C09; C09D; C09D127/00; C09D127/02; C09D127/04; C09D127/06; G03F7/004; G03F7/09; G03F7/11
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
A PROCESS FOR MAKING A RELIEF PRINTING PLATE, INCLUDING THE STEPS OF COATING A BASE SHEET WITH A LAYER OF UNFUSED PLASTISOL, SAID PLASTISOL BEING A VISCOUS DISPERSION OF A VINYL CHLORIDE RESIN IN A LIQUID PLASTICIZER AND BEING CAPABLE OF FUSING SAID RESIN IN SAID PLASTICIZER AT ELEVATED TEMPERATURE, COATING THE PLASTISOL LAYERS WITH AN INFRA-RED REFLECTIVE LAYER, COATING THE REFLECTIVE LAYER WITH A PHOTOSENSITIVE RESIST, PHOTOGRAPHING THE MATTER TO BE PRINTED UPON THE RESIST, PHOTOGRAPHING THE MATTER ING AWAY THE PORTIONS OF THE REFLECTIVE LAYER UNPROTECTED BY THE RESIST, EXPOSING THE PORTIONS OF THE PLASTISOL LAYER UNPROTECTED BY THE REFLECTIVE LAYER TO AN INFRA-RED SOURCE TO FUSE SAID PORTIONS, AND WASHING AWAY THE UNFUSED PORTIONS OF SAID PLASTISOL LAYER.
Claim 2
Dependent Claim
121 words
A PROCESS FOR MAKING A RELIEF PRINTING PLATE, INCLUDING THE STEPS OF COATING A BASE SHEET WITH A LAYER OF UNFUSED PLASTISOL, SAID PLASTISOL BEING A VISCOUS DISPERSION OF A VINYL CHLORIDE RESIN IN A LIQUID PLASTICIZER AND BEING CAPABLE OF FUSING SAID RESIN IN SAID PLASTICIZER AT ELEVATED TEMPERATURE, COATING THE PLASTISOL LAYERS WITH AN INFRA-RED REFLECTIVE LAYER, COATING THE REFLECTIVE LAYER WITH A PHOTOSENSITIVE RESIST, PHOTOGRAPHING THE MATTER TO BE PRINTED UPON THE RESIST, PHOTOGRAPHING THE MATTER ING AWAY THE PORTIONS OF THE REFLECTIVE LAYER UNPROTECTED BY THE RESIST, EXPOSING THE PORTIONS OF THE PLASTISOL LAYER UNPROTECTED BY THE REFLECTIVE LAYER TO AN INFRA-RED SOURCE TO FUSE SAID PORTIONS, AND WASHING AWAY THE UNFUSED PORTIONS OF SAID PLASTISOL LAYER.
References Cited (Backward Citations)
US2099976A
Cited
US2010459A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-03-27 | 1964-09-26 | 1965-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-27 | 1968-09-26 | 1969-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-27 | 1972-09-26 | 1973-03-28 | $7700.00 | Window Closed / Lapsed |