US2914406A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of gravure reproduction
Assignee: Art Color Printing Co
•
Filing: 1955-07-26
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Granted: 1959-11-24
•
Expires: 1975-07-26
Abstract
No abstract record available.
Inventors
- 👤 John G Consaul
- 👤 Velten Edwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:33
CPC Classifications
G; G03; G03F; G03F5/00; G03F5/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
THE METHOD OF GRAVURE REPRODUCTION WHICH COMPRISES MAKING A CONTINOUS-TONE NEGATIVE FROM THE COPY TO BE REPRODUCED, MAKING A CONTINUOUS-TONE, UNSCREENED POSITIVE FROM SAID NEGATIVE, MAKING A LINE SCREEN NEGATIVE OF SAID CONTINUOUS-TONE POSITIVE ON A LIGHT SENSITIVE RESIST BY EXPOSING THE RESIST PHOTOGRAPHICALLY TO SAID POSITIVE SIMULTANEOUSLY THROUGH A HALF-TONE SCREEN AND AN AUXILIARY SCREENING DEVICE COMPRISING AN OPAQUE MEMBER HAVING A PLURALITY OF SPACED CIRCULAR OPENING THERETHROUGH ARRANGED IN TWO STRAIGHT LINES THAT CROSS EACH OTHER AT A RIGHT ANGLE AND ARE CENTERED WITH RESPECT TO SQUARES OF THE HALF-TONE SCREEN, RE-EXPOSING THE RESIST TO SAID CONTINUOUS-TONE POSITIVE WITH SAID SCREENS REMOVED TO MAKE AN UNLINED IMAGE THEREOF DIRECTLY UPON THE LINE SCREEN IMAGE FORMED ON SAID RESIST, AND TRANSFERRING THE RESIST TO THE PRINTING SURFACE, DEVELOPING AND ETCHING SAID SURFACE.
Claim 2
Independent Claim
133 words
THE METHOD OF GRAVURE REPRODUCTION WHICH COMPRISES MAKING A CONTINOUS-TONE NEGATIVE FROM THE COPY TO BE REPRODUCED, MAKING A CONTINUOUS-TONE, UNSCREENED POSITIVE FROM SAID NEGATIVE, MAKING A LINE SCREEN NEGATIVE OF SAID CONTINUOUS-TONE POSITIVE ON A LIGHT SENSITIVE RESIST BY EXPOSING THE RESIST PHOTOGRAPHICALLY TO SAID POSITIVE SIMULTANEOUSLY THROUGH A HALF-TONE SCREEN AND AN AUXILIARY SCREENING DEVICE COMPRISING AN OPAQUE MEMBER HAVING A PLURALITY OF SPACED CIRCULAR OPENING THERETHROUGH ARRANGED IN TWO STRAIGHT LINES THAT CROSS EACH OTHER AT A RIGHT ANGLE AND ARE CENTERED WITH RESPECT TO SQUARES OF THE HALF-TONE SCREEN, RE-EXPOSING THE RESIST TO SAID CONTINUOUS-TONE POSITIVE WITH SAID SCREENS REMOVED TO MAKE AN UNLINED IMAGE THEREOF DIRECTLY UPON THE LINE SCREEN IMAGE FORMED ON SAID RESIST, AND TRANSFERRING THE RESIST TO THE PRINTING SURFACE, DEVELOPING AND ETCHING SAID SURFACE.
References Cited (Backward Citations)
US2040247A
Cited
US2060640A
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US2096794A
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US2182559A
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US2731346A
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US2703281A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-23 | 1963-05-25 | 1963-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-23 | 1967-05-25 | 1967-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-23 | 1971-05-25 | 1971-11-24 | $7700.00 | Window Closed / Lapsed |