Patent US3156183A successfully refreshed from Google Patents.
US3156183A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermographic offset master and method of use
Assignee: AB Dick Co
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Filing: 1961-04-24
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Granted: 1964-11-10
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Expires: 1981-04-24
Abstract
No abstract record available.
Inventors
- 👤 Frederick O Bach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:33
CPC Classifications
B; B41; B41N; B41N1/00; B41N1/12; B41N1/14; B41C; B41C1/00; B41C1/10; B41C1/1041
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
168 words
THE METHOD OF IMAGING A LITHOGRAPHIC PLATE DIRECTLY FROM AN ORIGINAL IN WHICH THE IMAGE CONTAINS A RADIATION ABSORBING-HEAT GENERATING MATERIAL COMPRISING THE STEPS OF POSITIONING THE ORIGINAL IN SURFACE CONTACT WITH THE COATED SIDE OF A LITHOGRAPHIC PLATE IN WHICH THE COATING ON THE LITHOGRAPHIC SURFACE OF THE PLATE IS FORMED OF AN INK RECEPTIVE, WATER REPELLENT IMAGING MATERIAL WHICH IS REDUCIBLE TO A MOLTEN STATE AT A TEMPERATURE CAPABLE OF BEING DEVELOPED IN THE IMAGED AREAS OF THE ORIGINAL UPON IRRADIATION AND WHICH IS DISPERSED IN AN AQUEOUS SEPARABLE BINDER, DIRECTING RADIATIONS ONTO THE ORIGINAL WHEREBY THE RADIATIONS ARE ABSORBED IN THE IMAGED AREAS OF THE ORIGINAL IN SUFFICIENT QUANTITY FOR GENERATION OF A HEAT PATTERN WHICH TRANSFERS TO THE ADJACENT COATING TO REDUCE THE CORRESPONDING AREAS OF THE INK RECEPTIVE, WATER REPELLENT IMAGING MATERIAL TO A FUSED STATE, AND THEN TREATING THE COATING WITH AN AQUEOUS MEDIUM TO REMOVE THE COATING FROM THE LITHOGRAPHIC SURFACE AND LEAVE FUSED IMAGING MATERIAL ON THE UNDERLYING LITHOGRAPHIC SURFACE.
Claim 2
Independent Claim
168 words
THE METHOD OF IMAGING A LITHOGRAPHIC PLATE DIRECTLY FROM AN ORIGINAL IN WHICH THE IMAGE CONTAINS A RADIATION ABSORBING-HEAT GENERATING MATERIAL COMPRISING THE STEPS OF POSITIONING THE ORIGINAL IN SURFACE CONTACT WITH THE COATED SIDE OF A LITHOGRAPHIC PLATE IN WHICH THE COATING ON THE LITHOGRAPHIC SURFACE OF THE PLATE IS FORMED OF AN INK RECEPTIVE, WATER REPELLENT IMAGING MATERIAL WHICH IS REDUCIBLE TO A MOLTEN STATE AT A TEMPERATURE CAPABLE OF BEING DEVELOPED IN THE IMAGED AREAS OF THE ORIGINAL UPON IRRADIATION AND WHICH IS DISPERSED IN AN AQUEOUS SEPARABLE BINDER, DIRECTING RADIATIONS ONTO THE ORIGINAL WHEREBY THE RADIATIONS ARE ABSORBED IN THE IMAGED AREAS OF THE ORIGINAL IN SUFFICIENT QUANTITY FOR GENERATION OF A HEAT PATTERN WHICH TRANSFERS TO THE ADJACENT COATING TO REDUCE THE CORRESPONDING AREAS OF THE INK RECEPTIVE, WATER REPELLENT IMAGING MATERIAL TO A FUSED STATE, AND THEN TREATING THE COATING WITH AN AQUEOUS MEDIUM TO REMOVE THE COATING FROM THE LITHOGRAPHIC SURFACE AND LEAVE FUSED IMAGING MATERIAL ON THE UNDERLYING LITHOGRAPHIC SURFACE.
References Cited (Backward Citations)
US1245120A
Cited
US2800077A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-10 | 1968-05-11 | 1968-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-10 | 1972-05-11 | 1972-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-10 | 1976-05-11 | 1976-11-10 | $7700.00 | Window Closed / Lapsed |