US3220832A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Presensitised planographic printing plates and methods of preparing and using such
Assignee: Azoplate Corp
•
Filing: 1961-07-18
•
Granted: 1965-11-30
•
Expires: 1981-07-18
Abstract
No abstract record available.
Inventors
- 👤 Uhlig Fritz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:21
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/14; G03G5/142; B; B41; B41N; B41N3/00; B41N3/03; B41N3/038; G03G13/00; G03G13/26; G03G13/28
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
45 words
A METHOD OF IMPROVING THE RECEPTIVITY FOR ADHESIVELY APPLIED COATINGS OF AN ALUMNIUM SURFACE WHICH COMPRISES TREATING THE SURFACE WITH A SOLUTION COMPRISING AT LEAST ONE COMPOUND SELECTED FROM THE GROUP CONSISTING OF AN ORGANIC PHOSPHONIC ACID AND THE ESTERS AND SALTS THEREOF, AND DRYING.
Claim 2
Independent Claim
45 words
A METHOD OF IMPROVING THE RECEPTIVITY FOR ADHESIVELY APPLIED COATINGS OF AN ALUMNIUM SURFACE WHICH COMPRISES TREATING THE SURFACE WITH A SOLUTION COMPRISING AT LEAST ONE COMPOUND SELECTED FROM THE GROUP CONSISTING OF AN ORGANIC PHOSPHONIC ACID AND THE ESTERS AND SALTS THEREOF, AND DRYING.
Claim 3
Dependent Claim
41 words
A PRESENSITIZED PRINTING PLATE COMPRISING AN ALUMINUM BASE, A FIRST LAYER COMPRISING AT LEAST ONE COMPOUND SELECTED FROM THE GROUP CONSISTING OF AN ORGANIC PHOSPHONIC ACID AND THE ESTERS AND SALTS THEREOF, AND A SECOND REPRODUCTION LAYER ON THE FIRST LAYER.
Claim 4
Dependent Claim
41 words
A PRESENSITIZED PRINTING PLATE COMPRISING AN ALUMINUM BASE, A FIRST LAYER COMPRISING AT LEAST ONE COMPOUND SELECTED FROM THE GROUP CONSISTING OF AN ORGANIC PHOSPHONIC ACID AND THE ESTERS AND SALTS THEREOF, AND A SECOND REPRODUCTION LAYER ON THE FIRST LAYER.
References Cited (Backward Citations)
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Cited
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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) | 1968-11-29 | 1969-05-31 | 1969-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-29 | 1973-05-31 | 1973-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-29 | 1977-05-31 | 1977-11-30 | $7700.00 | Window Closed / Lapsed |