US3095303A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Styryl dye base composition and photographic processes for producing lithographic surfaces photoresists and prints therewith
Assignee: Horizons Inc
•
Filing: 1960-07-12
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Granted: 1963-06-25
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Expires: 1980-07-12
Abstract
No abstract record available.
Inventors
- 👤 Robert H Sprague
- 👤 Jr Harry L Fichter
- 👤 William P Hamilton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:59
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/675
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
83 words
A PHOTOSENSITIVE COMPOSITION COMPRISING A PHOTOLYTICALLY ACTIVE ORGANIC HALOGEN-CONTAINING COMPOUND SELECTED FROM THE GROUP CONSISTING OF COMPOUNDS CAPABLE OF BEING SPLIT BY ABSORPTION OF LIGHT INTO FREE RADICAL FRAGMENTS CONSISTING OF HALOGEN FREE RADICALS AND ORGANIC FREE RADICALS, AND SELECTED FROM THE GROUP CONSISTING OF ALKYL AND ARALKYL COMPOUNDS IN WHICH AT LEAST THREE HALOGEN ATOMS ARE ATTACHED TO A SINGLE CARBON ATOM AND A COMPOUND SELECTED FROM THE GROUP CONSISTING OF STYRYL DYE BASES ABD VINYLENE HOMOLOGUES THEREOF REPRESENTED BY THE FORMULA:
Claim 2
Dependent Claim
83 words
A PHOTOSENSITIVE COMPOSITION COMPRISING A PHOTOLYTICALLY ACTIVE ORGANIC HALOGEN-CONTAINING COMPOUND SELECTED FROM THE GROUP CONSISTING OF COMPOUNDS CAPABLE OF BEING SPLIT BY ABSORPTION OF LIGHT INTO FREE RADICAL FRAGMENTS CONSISTING OF HALOGEN FREE RADICALS AND ORGANIC FREE RADICALS, AND SELECTED FROM THE GROUP CONSISTING OF ALKYL AND ARALKYL COMPOUNDS IN WHICH AT LEAST THREE HALOGEN ATOMS ARE ATTACHED TO A SINGLE CARBON ATOM AND A COMPOUND SELECTED FROM THE GROUP CONSISTING OF STYRYL DYE BASES ABD VINYLENE HOMOLOGUES THEREOF REPRESENTED BY THE FORMULA:
Claim 3
Dependent Claim
52 words
A PROCESS FOR PRODUCING A LITHO MASTER, COMPRISING PREPARING THE COMPOSITION OF CLAIM 1; COATING A CASEINFILLED PAPER THEREWITH; EXPOSING THE COMPOSITION TO LIGHT THROUGH A SUITABLE NEGATIVE, THEREBY PRODUCING A POSITIVE IMAGE IN COLOR; SWABBING THE EXPOSED SHEET WITH WATER TO RENDER THE BACKGROUND INK-REPELLENT, THE IMAGE AREA THEN BEING INK-RECEPTIVE.
References Cited (Backward Citations)
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US1658510A
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US2465412A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-24 | 1966-12-24 | 1967-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-24 | 1970-12-24 | 1971-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-24 | 1974-12-24 | 1975-06-25 | $7700.00 | Window Closed / Lapsed |