US2703281A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Auxiliary screening apparatus and method for multicolor photogravure
Assignee: Art Color Printing Co
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Filing: 1952-10-16
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Granted: 1955-03-01
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Expires: 1972-10-16
Abstract
No abstract record available.
Inventors
- 👤 John G Consaul
- 👤 Velten Edwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:04
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/02; G03B17/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
AN AUXIALLIARY SCREENING METHOD FOR MULTICOLOR PHOTOGRAVURE WHICH CONSISTS IN MAKING PHOTOGRAPHICALLY A SERIES OF POSITIVES EACH OF A DIFFERENT COLOR SEPARATION NEGATIVE THROUGH A CONVENTIONAL SQUARE RULED HALF-TONE SCREEN TOGETHER WITH A AUXILIARY SCREEN HAVING ONLY TWO SERIES OF A LIKE NUMBER OF CIRCULAR OPENING ALL OF THE SAME SIZE ARRANGED IN TWO ROWS, EACH CONSISTING OF SEVEN OPENINGS, THAT CROSS EACH OTHER AT A RIGHT-ANGLE AT THE COMMON CENTER OPENING OF BOTH ROS, TURNING THE AUXILIARY SCREEN ANGULARLY ABOUT THE AXIS OF THE COMMON CENTER OPENING IN STEPS OF 15* AND MULTIPLES THEREOF, TO CORRESPOND TO THE SETTING OF THE HALF-TONE SCREEN FOR THE COLOR OF THE PARTICULAR COLOR SEPARATION NEGATIVE TO BE PHOTOGRAPHED SO THAT THE CIRCULAR OPENINGS OF THE AUXILIARY SCREEN WILL APPEAR TO PASS DIAGONALLY THROUGH AND BE CENTERED IN THE SQUARE DOTS OF THE HALF-TONE SCREEN.
Claim 2
Dependent Claim
142 words
AN AUXIALLIARY SCREENING METHOD FOR MULTICOLOR PHOTOGRAVURE WHICH CONSISTS IN MAKING PHOTOGRAPHICALLY A SERIES OF POSITIVES EACH OF A DIFFERENT COLOR SEPARATION NEGATIVE THROUGH A CONVENTIONAL SQUARE RULED HALF-TONE SCREEN TOGETHER WITH A AUXILIARY SCREEN HAVING ONLY TWO SERIES OF A LIKE NUMBER OF CIRCULAR OPENING ALL OF THE SAME SIZE ARRANGED IN TWO ROWS, EACH CONSISTING OF SEVEN OPENINGS, THAT CROSS EACH OTHER AT A RIGHT-ANGLE AT THE COMMON CENTER OPENING OF BOTH ROS, TURNING THE AUXILIARY SCREEN ANGULARLY ABOUT THE AXIS OF THE COMMON CENTER OPENING IN STEPS OF 15* AND MULTIPLES THEREOF, TO CORRESPOND TO THE SETTING OF THE HALF-TONE SCREEN FOR THE COLOR OF THE PARTICULAR COLOR SEPARATION NEGATIVE TO BE PHOTOGRAPHED SO THAT THE CIRCULAR OPENINGS OF THE AUXILIARY SCREEN WILL APPEAR TO PASS DIAGONALLY THROUGH AND BE CENTERED IN THE SQUARE DOTS OF THE HALF-TONE SCREEN.
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) | 1958-02-28 | 1958-08-30 | 1959-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-02-28 | 1962-08-30 | 1963-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-02-28 | 1966-08-30 | 1967-03-01 | $7700.00 | Window Closed / Lapsed |