US3396020A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Planographic printing plate
Assignee: Azoplate Corp
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Filing: 1965-11-16
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Granted: 1968-08-06
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Expires: 1985-11-16
Abstract
No abstract record available.
Inventors
- 👤 Henning H Borchers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:05
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/016; G03F7/021; G03F7/0212
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A PRESENTIZED PRINTING PLATE COMPRISING AN ALUMINUM BASE, A FIRST LAYER THEREON COMPRISING AT LEAST ONE COMPOUND SELECTED FROM THE GROUP CONSITING OF AN ORGANIC PHOSPHONIC ACID AND THE ESTERS AND SALTS THEREOF, AND A SECOND REPRODUCTION LAYER ON THE FIRST LAYER, THE LATTER COMPRISING A WATER-SOLUBLE DIAZONIUM CONDENSATE, PREPARED BY CONDENSING A DIPHENYLAMINE-4-DIAZONIUM SALT WITH FORMALDEHYDE IN AN ACID CONDENSATION MEDIUM, IN ADMIXTURE WITH A WATER-INSOLUBLE ORGANOPHILIC RESINOUS MATERIAL AT LEAST A MAJOR PORTION OF WHICH IS AN AMINE RESIN.
Claim 2
Dependent Claim
81 words
A PRESENTIZED PRINTING PLATE COMPRISING AN ALUMINUM BASE, A FIRST LAYER THEREON COMPRISING AT LEAST ONE COMPOUND SELECTED FROM THE GROUP CONSITING OF AN ORGANIC PHOSPHONIC ACID AND THE ESTERS AND SALTS THEREOF, AND A SECOND REPRODUCTION LAYER ON THE FIRST LAYER, THE LATTER COMPRISING A WATER-SOLUBLE DIAZONIUM CONDENSATE, PREPARED BY CONDENSING A DIPHENYLAMINE-4-DIAZONIUM SALT WITH FORMALDEHYDE IN AN ACID CONDENSATION MEDIUM, IN ADMIXTURE WITH A WATER-INSOLUBLE ORGANOPHILIC RESINOUS MATERIAL AT LEAST A MAJOR PORTION OF WHICH IS AN AMINE RESIN.
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) | 1971-08-06 | 1972-02-05 | 1972-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-06 | 1976-02-05 | 1976-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-06 | 1980-02-05 | 1980-08-06 | $7700.00 | Window Closed / Lapsed |