US3210184A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Planographic printing plates having a bohmite oxide interlayer and process for producing same
Assignee: Azoplate Corp
•
Filing: 1960-12-27
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Granted: 1965-10-05
•
Expires: 1980-12-27
Abstract
No abstract record available.
Inventors
- 👤 Uhlig Fritz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:45
CPC Classifications
G; G03; G03G; G03G13/00; G03G13/26; G03G13/28; B; B41; B41N; B41N1/00; B41N1/04; B41N1/08; B41N1/083; B41N3/00; B41N3/03; B41N3/034; C; C25; C25D; C25D11/00; C25D11/02; C25D11/04; C25D11/06; G03G5/00; G03G5/02; G03G5/04; G03G5/08; G03G5/087; G03G5/10
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
52 words
A PROCESS FOR MAKING A PRINTING PLATE WHICH COMPRISES EXPOSING AN ELECTROSTATICALLY CHARGED LIGHTMODIFIABLE REPRODUCTION COATING, SUPPORTED ON AN ALUMINUM BASE HAVING A BOHMITE OXIDE LAYER OF THE FORMULA AL2O3.H2O THEREON, TO LIGHT UNDER A MASTER, DEVELOPING THE RESULTING IMAGE WITH AN ELECTROSCOPIC MATERIAL, FIXING THE IMAGE, AND HYDROPHILIZING THE NON-IMAGE AREAS.
Claim 2
Dependent Claim
52 words
A PROCESS FOR MAKING A PRINTING PLATE WHICH COMPRISES EXPOSING AN ELECTROSTATICALLY CHARGED LIGHTMODIFIABLE REPRODUCTION COATING, SUPPORTED ON AN ALUMINUM BASE HAVING A BOHMITE OXIDE LAYER OF THE FORMULA AL2O3.H2O THEREON, TO LIGHT UNDER A MASTER, DEVELOPING THE RESULTING IMAGE WITH AN ELECTROSCOPIC MATERIAL, FIXING THE IMAGE, AND HYDROPHILIZING THE NON-IMAGE AREAS.
Claim 3
Dependent Claim
15 words
A PROCESS ACCORDING TO CLAIM 10 IN WHICH THE REPRODUCTION COATING INCLUDES AN ORGANIC PHOTOCONDUCTOR.
References Cited (Backward Citations)
US2696435A
Cited
GB748340A
Cited
US2716061A
Cited
US2859148A
Cited
US2995442A
Cited
US2994609A
Cited
US2958599A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-04 | 1969-04-05 | 1969-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-04 | 1973-04-05 | 1973-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-04 | 1977-04-05 | 1977-10-05 | $7700.00 | Window Closed / Lapsed |