Patent US5384864A successfully refreshed from Google Patents.
Patent US3143416A successfully refreshed from Google Patents.
US3143416A
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Light sensitive coatings for screen printing comprising a light sensitive material with a condensate of a omega, omega'-diamine and a omega, omega'-dicarboxylic acid
Assignee: Azoplate Corp
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Filing: 1960-09-21
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Granted: 1964-08-04
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Expires: 1980-09-21
Abstract
No abstract record available.
Inventors
- 👤 Reichel Maximilian Karl
- 👤 Neugebauer Wilhelm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:06
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/12; C; C07; C07C; C07C247/00; C09; C09D; C09D177/00; C09D177/06; G03F7/004; G03F7/038; G03F7/0387
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
53 words
LIGHT SENSITIVE MATERIAL COMPRISING A POROUS BASE MATERIAL HAVING A COATING THEREON COMPRISING A LIGHT SENSITIVE COMPOUND CAPABLE OF RENDERING THE COATING INSOLUBLE IN AQUEOUS ALCOHOL UPON EXPOSURE TO LIGHT AND AN N-ALKOXY METHYLATION PRODUCT OF A PARTIALLY DEPOLYMERIZED POLYCONDENSATE CONSISTING OF THE MONOMERIC UNITS OF A W,W''-DIAMINE CONDENSED WITH A W,W''-DICARBOXYLIC ACID.
Claim 2
Dependent Claim
53 words
LIGHT SENSITIVE MATERIAL COMPRISING A POROUS BASE MATERIAL HAVING A COATING THEREON COMPRISING A LIGHT SENSITIVE COMPOUND CAPABLE OF RENDERING THE COATING INSOLUBLE IN AQUEOUS ALCOHOL UPON EXPOSURE TO LIGHT AND AN N-ALKOXY METHYLATION PRODUCT OF A PARTIALLY DEPOLYMERIZED POLYCONDENSATE CONSISTING OF THE MONOMERIC UNITS OF A W,W''-DIAMINE CONDENSED WITH A W,W''-DICARBOXYLIC ACID.
Claim 3
Dependent Claim
78 words
A PROCESS FOR MAKING SCREEN PRINTING STENCILS WHICH COMPRISES EXPOSING A COATED POROUS BASE MATERIAL TO LIGHT UNDER A MASTER, THE COATING COMPRISING A LIGHT COMPOUND CAPABLE OF RENDERING THE COATING INSOLUBLE IN AQUEOUS ALCOHOL UPON EXPOSURE TO LIGHT AND AN N-ALKOXY METHYLATION PRODUCT OF A PARTIALLY DEPOLYMERIZED POLYCONDENSATE CONSISTING OF THE MONOMERIC UNITS OF A W,W''DIAMINE CONDENSED WITH A W,W''-DICARBOXYLIC ACID, AND TREATING THE EXPOSED COATING WITH A SOLVENT, WHEREBY THE NON-LIGHT STRUCK PORTIONS THEREOF ARE REMOVED.
Claim 4
Dependent Claim
78 words
A PROCESS FOR MAKING SCREEN PRINTING STENCILS WHICH COMPRISES EXPOSING A COATED POROUS BASE MATERIAL TO LIGHT UNDER A MASTER, THE COATING COMPRISING A LIGHT COMPOUND CAPABLE OF RENDERING THE COATING INSOLUBLE IN AQUEOUS ALCOHOL UPON EXPOSURE TO LIGHT AND AN N-ALKOXY METHYLATION PRODUCT OF A PARTIALLY DEPOLYMERIZED POLYCONDENSATE CONSISTING OF THE MONOMERIC UNITS OF A W,W''DIAMINE CONDENSED WITH A W,W''-DICARBOXYLIC ACID, AND TREATING THE EXPOSED COATING WITH A SOLVENT, WHEREBY THE NON-LIGHT STRUCK PORTIONS THEREOF ARE REMOVED.
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) | 1967-08-04 | 1968-02-03 | 1968-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-04 | 1972-02-03 | 1972-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-04 | 1976-02-03 | 1976-08-04 | $7700.00 | Window Closed / Lapsed |