US2543393A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preparing intaglio printing plates
Assignee: Publication Corp
•
Filing: 1948-12-31
•
Granted: 1951-02-27
•
Expires: 1968-12-31
Abstract
No abstract record available.
Inventors
- 👤 Wheldon Theodore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:22
CPC Classifications
G; G03; G03F; G03F5/00; G03F5/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
THE METHOD OF FORMING AN INTAGLIO PRINTING SURFACE COMPRISING FORMING A SCREEN POSITIVE OF SUBJECT MATTER TO BE REPRODUCED, TWICE EXPOSING IN ANY ORDER THE SCREEN POSITIVE UPON A LAYER OF LIGHT-SENSITIVE GALATIN, ONCE IN CONTACT THEREWITH AND ONCE SPACED THEREFROM TO DIFFUSE THE SCREEN PATTERN, DEVELOPING THE LIGHT-SENSITIVE GELATIN TO FORM A RESIST AND ETCHING A SURFACE THROUGH THE GELATIN RESIST TO PRODUCE AN INTAGLIO PRINTING SURFACE.
Claim 2
Independent Claim
68 words
THE METHOD OF FORMING AN INTAGLIO PRINTING SURFACE COMPRISING FORMING A SCREEN POSITIVE OF SUBJECT MATTER TO BE REPRODUCED, TWICE EXPOSING IN ANY ORDER THE SCREEN POSITIVE UPON A LAYER OF LIGHT-SENSITIVE GALATIN, ONCE IN CONTACT THEREWITH AND ONCE SPACED THEREFROM TO DIFFUSE THE SCREEN PATTERN, DEVELOPING THE LIGHT-SENSITIVE GELATIN TO FORM A RESIST AND ETCHING A SURFACE THROUGH THE GELATIN RESIST TO PRODUCE AN INTAGLIO PRINTING SURFACE.
References Cited (Backward Citations)
US1532696A
Cited
US2096794A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-02-26 | 1954-08-28 | 1955-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-26 | 1958-08-28 | 1959-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-26 | 1962-08-28 | 1963-02-27 | $7700.00 | Window Closed / Lapsed |