US3219447A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Material for the photo mechanical manufacture of printing plates and method for converting the same into printing plates
Assignee: Azoplate Corp
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Filing: 1962-01-23
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Granted: 1965-11-23
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Expires: 1982-01-23
Abstract
No abstract record available.
Inventors
- 👤 Neugebauer Wilhelm
- 👤 Werner Georg
- 👤 Rebenstock August
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:57
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/016
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
54 words
A PRESENSITIZED PRINTING PLATE COMPRISING A BASE MATERIAL HAVING A LAYER THEREON COMPRISING AT LEAST ONE ORGANIC SOLVENT-SOLUBLE DIAZONIUM SALT OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF AN INORGANIC ACID AND A LOW MOLECULAR WEIGHT ORGANIC SULFONIC ACID, IN ADMIXTURE WITH AT LEAST AN EQUAL AMOUNT BY WEIGHT OF AN ALKALISOLUBLE NOVOLAK.
Claim 2
Dependent Claim
54 words
A PRESENSITIZED PRINTING PLATE COMPRISING A BASE MATERIAL HAVING A LAYER THEREON COMPRISING AT LEAST ONE ORGANIC SOLVENT-SOLUBLE DIAZONIUM SALT OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF AN INORGANIC ACID AND A LOW MOLECULAR WEIGHT ORGANIC SULFONIC ACID, IN ADMIXTURE WITH AT LEAST AN EQUAL AMOUNT BY WEIGHT OF AN ALKALISOLUBLE NOVOLAK.
Claim 3
Dependent Claim
72 words
A PROCESS FOR DEVELOPING A PRINTING PLATE WHICH COMPRISES EXPOSING A SUPPORTED LAYER TO LIGHT UNDER A MASTER AND TREATING THE EXPOSED LAYER WITH A WEAKLY ALKALINE DEVELOPER, THE LAYER COMPRISING AT LEAST ONE ORGANIC SOLVENT-SOLUBLE DIAZONIUM SALT OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF AN INORGANIC ACID AND A LOW MOLECULAR WEIGHT ORGANIC SULFONIC ACID, IN ADMIXTURE WITH AT LEAST AN EQUAL AMOUNT BY WEIGHT OF AN ALKALISOLUBLE NOVOLAK.
Claim 4
Dependent Claim
72 words
A PROCESS FOR DEVELOPING A PRINTING PLATE WHICH COMPRISES EXPOSING A SUPPORTED LAYER TO LIGHT UNDER A MASTER AND TREATING THE EXPOSED LAYER WITH A WEAKLY ALKALINE DEVELOPER, THE LAYER COMPRISING AT LEAST ONE ORGANIC SOLVENT-SOLUBLE DIAZONIUM SALT OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF AN INORGANIC ACID AND A LOW MOLECULAR WEIGHT ORGANIC SULFONIC ACID, IN ADMIXTURE WITH AT LEAST AN EQUAL AMOUNT BY WEIGHT OF AN ALKALISOLUBLE NOVOLAK.
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) | 1968-11-22 | 1969-05-24 | 1969-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-22 | 1973-05-24 | 1973-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-22 | 1977-05-24 | 1977-11-23 | $7700.00 | Window Closed / Lapsed |