US3264103A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photopolymerizable relief printing plates developed by dry thermal transfer
Assignee: EIDP Inc
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Filing: 1962-06-27
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Granted: 1966-08-02
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Expires: 1982-06-27
Abstract
No abstract record available.
Inventors
- 👤 Cohen Abraham Bernard
- 👤 Webers Vincent Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:12
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/26; G03F7/34; G03F7/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
A PROCESS FOR PREPARING A RELIEF PRINTING PLATE WHICH COMPRISES* (1) EXPOSING TO ACTINIC RADIATION THROUGH AN IMAGE-BEARING TRANSPARENCY, A SOLID PHOTOPOLYMERIZABLE THERMOPLASTIC STRATUM, OF AT LEAST ABOUT 0.001 INCH IN THICKNESS, ATTACHED TO A SUPPORT; (2) HEATING SAID STRATUM TO A TEMPERATURE BETWEEN THE FLOW TEMPERATURES OF THE EXPOSED AND THE UNDEREXPOSED STRATUM MATERIALS; AND (3) PRESSING A POROUS MATRIX INTO CONTACT WITH SAID HEADED STRATUM TO TRANSFER AT LEAST ABOUT 80% OF THE MOLTEN UNEXPOSED MATERIAL BY ABSORPTION AND LEAVING A RELIEF IMAGE ON SAID SUPPORT, SAID MATRIX HAVING AT LEAST A 0.002 INCH THICKNESS AND HAVING AT ITS SURFACE A MAXIMUM PORE SIZE OF ABOUT 0.003 INCH.
Claim 2
Dependent Claim
110 words
A PROCESS FOR PREPARING A RELIEF PRINTING PLATE WHICH COMPRISES* (1) EXPOSING TO ACTINIC RADIATION THROUGH AN IMAGE-BEARING TRANSPARENCY, A SOLID PHOTOPOLYMERIZABLE THERMOPLASTIC STRATUM, OF AT LEAST ABOUT 0.001 INCH IN THICKNESS, ATTACHED TO A SUPPORT; (2) HEATING SAID STRATUM TO A TEMPERATURE BETWEEN THE FLOW TEMPERATURES OF THE EXPOSED AND THE UNDEREXPOSED STRATUM MATERIALS; AND (3) PRESSING A POROUS MATRIX INTO CONTACT WITH SAID HEADED STRATUM TO TRANSFER AT LEAST ABOUT 80% OF THE MOLTEN UNEXPOSED MATERIAL BY ABSORPTION AND LEAVING A RELIEF IMAGE ON SAID SUPPORT, SAID MATRIX HAVING AT LEAST A 0.002 INCH THICKNESS AND HAVING AT ITS SURFACE A MAXIMUM PORE SIZE OF ABOUT 0.003 INCH.
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) | 1969-08-01 | 1970-01-31 | 1970-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-01 | 1974-01-31 | 1974-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-01 | 1978-01-31 | 1978-08-02 | $7700.00 | Window Closed / Lapsed |