US2585864A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Printing plate etching
Assignee: Harris Corp
•
Filing: 1949-10-07
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Granted: 1952-02-12
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Expires: 1969-10-07
Abstract
No abstract record available.
Inventors
- 👤 Sollner Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:09
CPC Classifications
C; C23; C23F; C23F1/00; C23F1/10; C23F1/14; C23F1/16; C23F1/28; C23F1/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
35 words
IN PREPARING A METAL PRINTING PLATE OF THE GROUP CONSISTING OF CHROMIUM ALLOYS AND NICKEL, INCORPORATING IN A MAGNESIUM CHLORIDE ETCHING SOLUTION A CATALYTIC MOUNT OF CHLORPLATINIC ACID, AND ETCHING THE PLATE IN SUCH SOLUTION.
Claim 2
Dependent Claim
35 words
IN PREPARING A METAL PRINTING PLATE OF THE GROUP CONSISTING OF CHROMIUM ALLOYS AND NICKEL, INCORPORATING IN A MAGNESIUM CHLORIDE ETCHING SOLUTION A CATALYTIC MOUNT OF CHLORPLATINIC ACID, AND ETCHING THE PLATE IN SUCH SOLUTION.
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) | 1955-02-11 | 1955-08-13 | 1956-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-11 | 1959-08-13 | 1960-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-11 | 1963-08-13 | 1964-02-12 | $7700.00 | Window Closed / Lapsed |