US2558504A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing a printing form having a bimetallic surface
Assignee: Individual
•
Filing: 1947-08-01
•
Granted: 1951-06-26
•
Expires: 1967-08-01
Abstract
No abstract record available.
Inventors
- 👤 Aller Claes Borge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:15
CPC Classifications
B; B41; B41N; B41N1/00; B41N1/04; B41N1/08; B41N1/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
THE METHOD OF PRODUCING A PRINTING FORM HAVING A BIMETALLIC SURFACE WHICH COMPRISES, COVERING PARTS OF A LAYER OF A METAL SELECTED FROM THE GROUP CONSISTING OF COPPER AND TIN, WHICH LAYER IS ONE SURFACE OF A METALLIC BASE WHICH IS WATER-RECEIVING AND INK-REPELLENT IN A PLANOGRAPHIC PRINTING PROCESS, WITH A METAL SELECTED FROM THE GROUP CONSISTING OF ZINC AND CADMIUM, AND ETCHING AWAY PARTS OF THE LAYER NOT COVERED BY THE METAL OF SAID LAST GROUP WITH A SULPHIDE-FORMING ETCHING AGENT, WHILE LEAVING THE COVERED PARTS AND THE METALLIC BASE.
Claim 2
Independent Claim
91 words
THE METHOD OF PRODUCING A PRINTING FORM HAVING A BIMETALLIC SURFACE WHICH COMPRISES, COVERING PARTS OF A LAYER OF A METAL SELECTED FROM THE GROUP CONSISTING OF COPPER AND TIN, WHICH LAYER IS ONE SURFACE OF A METALLIC BASE WHICH IS WATER-RECEIVING AND INK-REPELLENT IN A PLANOGRAPHIC PRINTING PROCESS, WITH A METAL SELECTED FROM THE GROUP CONSISTING OF ZINC AND CADMIUM, AND ETCHING AWAY PARTS OF THE LAYER NOT COVERED BY THE METAL OF SAID LAST GROUP WITH A SULPHIDE-FORMING ETCHING AGENT, WHILE LEAVING THE COVERED PARTS AND THE METALLIC BASE.
References Cited (Backward Citations)
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Cited
US992898A
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US1069856A
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US2214950A
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US2215507A
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US2373089A
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US2408220A
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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) | 1954-06-25 | 1954-12-25 | 1955-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-25 | 1958-12-25 | 1959-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-25 | 1962-12-25 | 1963-06-26 | $7700.00 | Window Closed / Lapsed |