US3459642A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing a planographic plate
Assignee: Individual
•
Filing: 1966-11-18
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Granted: 1969-08-05
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Expires: 1986-11-18
Abstract
No abstract record available.
Inventors
- 👤 Armando Birlain Schafler
- 👤 Allan Kilroe Lombardo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:18
CPC Classifications
B; B41; B41N; B41N1/00; B41N1/04; B41N1/08; B41N1/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
PROCESS FORM PRODUCING A PRINTING PLATE, COMPRISING PREPARING A PRINTING PLATE BASE SHEET FOR ELECTROPLATING, ELECTROPLATING ON AT LEAST ONE SIDE THEREOF A COPPER INK ADHERING LAYER FROM AN ACID BATH CONTAINING A BRIGHTENER; ELECTROPLATING ON SAID COPPER LAYER ANOTHER COPPER INK ADHERING LAYER FROM AN ACID BATH CONTAINING A DOUBLE METAL SALT TO PRODUCE A MATTE ACID COPPER LAYER; AND ELECTROPLATING ON SAID COPPER LAYR A LAYER OF HARD NON-POROUS CHROMIUM.
Claim 2
Dependent Claim
72 words
PROCESS FORM PRODUCING A PRINTING PLATE, COMPRISING PREPARING A PRINTING PLATE BASE SHEET FOR ELECTROPLATING, ELECTROPLATING ON AT LEAST ONE SIDE THEREOF A COPPER INK ADHERING LAYER FROM AN ACID BATH CONTAINING A BRIGHTENER; ELECTROPLATING ON SAID COPPER LAYER ANOTHER COPPER INK ADHERING LAYER FROM AN ACID BATH CONTAINING A DOUBLE METAL SALT TO PRODUCE A MATTE ACID COPPER LAYER; AND ELECTROPLATING ON SAID COPPER LAYR A LAYER OF HARD NON-POROUS CHROMIUM.
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) | 1972-08-04 | 1973-02-03 | 1973-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-04 | 1977-02-03 | 1977-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-04 | 1981-02-03 | 1981-08-05 | $7700.00 | Window Closed / Lapsed |