US3939769A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for reproducing a full-color picture in two impressions
Assignee: Individual
•
Filing: 1973-08-13
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Granted: 1976-02-24
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Expires: 1993-08-13
Abstract
Abstract Process for reproducing a full color picture in two printing impressions, comprising the steps of: A. Projecting a multi-color image upon a first panchromatic type film through a composite separation screen having first areas which pass long record light rays and attenuate short record light rays and second areas which pass short record light rays and attenuate long record light rays; B. Projecting such multi-color image upon an ortho type film; C. Developing such first panchromatic type film and such ortho type film; D. Forming a first printing plate by such developed first panchromatic type film; E. Projecting long record light rays through such developed ortho type film and such composite separation screen upon a second panchromatic type film; F. Removing such developed ortho type film and projecting short record light rays through such composite separation screen upon such second panchromatic type film; G. Developing such second panchromatic type film; H. Forming a second printing plate from such developed second panchromatic type film; I. Inking a selected one of such printing plates with a first ink and transferring therefrom a first ink image upon a substrate; and J. Inking the other of such printing plates with a second ink and transferring therefrom a second ink image upon such substrate in registration with such first ink image.
Inventors
- 👤 Leslie H. Lorber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:15
CPC Classifications
G; G03; G03F; G03F3/00; G03F3/04; B; B41; B41C; B41C1/00; B41C1/12; B41M; B41M1/00; B41M1/14; B41M1/18
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
216 words
Process for reproducing a full color picture in two printing impressions, comprising the steps of: a. Projecting a multi-color image upon a first panchromatic type film through a composite separation screen having first areas which pass long record light rays and attenuate short record light rays and second areas which pass short record light rays and attenuate long record light rays; b. Projecting said multi-color image upon an ortho type film; c. Developing said first panchromatic type film and said ortho type film; d. Forming a first printing plate by said developed first panchromatic type film; e. Projecting long record light rays through said developed ortho type film and said composite separation screen upon a second panchromatic type film; f. Removing said developed ortho type film and projecting short record light rays through said composite separation screen upon said second panchromatic type film; g. Developing said second panchromatic type film; h. Forming a second printing plate from said developed second panchromatic type film; i. Inking a selected one of said printing plates with a first ink and transferring therefrom a first ink image upon a substrate; and j. Inking the other of said printing plates with a second ink and transferring therefrom a second ink image upon said substrate in registration with said first ink image.
Claim 2
Dependent Claim
216 words
Process for reproducing a full color picture in two printing impressions, comprising the steps of: a. Projecting a multi-color image upon a first panchromatic type film through a composite separation screen having first areas which pass long record light rays and attenuate short record light rays and second areas which pass short record light rays and attenuate long record light rays; b. Projecting said multi-color image upon an ortho type film; c. Developing said first panchromatic type film and said ortho type film; d. Forming a first printing plate by said developed first panchromatic type film; e. Projecting long record light rays through said developed ortho type film and said composite separation screen upon a second panchromatic type film; f. Removing said developed ortho type film and projecting short record light rays through said composite separation screen upon said second panchromatic type film; g. Developing said second panchromatic type film; h. Forming a second printing plate from said developed second panchromatic type film; i. Inking a selected one of said printing plates with a first ink and transferring therefrom a first ink image upon a substrate; and j. Inking the other of said printing plates with a second ink and transferring therefrom a second ink image upon said substrate in registration with said first ink image.
Claim 3
Dependent Claim
48 words
Process according to claim 1 wherein said first areas of said composite separation screen, said long record light rays, and said first ink are of selected red tones and said second areas of said composite separation screen and said short record light rays are of selected green tones.
Claim 4
Dependent Claim
14 words
Process according to claim 2 wherein the red tone includes a minor blue component.
Claim 5
Dependent Claim
14 words
Process according to claim 2 wherein the green tone includes a minor blue component.
Claim 6
Dependent Claim
14 words
Process according to claim 2 wherein the ink of selected black tone is blue-black.
Claim 7
Dependent Claim
14 words
Process according to claim 2 wherein the ink of selected black tone is purple-black.
Claim 8
Dependent Claim
15 words
Process according to claim 2 wherein the ink of selected red color is bright red.
Claim 9
Dependent Claim
23 words
Process according to claim 2 wherein said second ink is of a selected black tone and is applied to said first printing plate.
Claim 10
Dependent Claim
33 words
Process according to claim 8 wherein said red tone ink image is transferred onto said substrate before said black tone ink image is transferred upon said substrate and said substrate is substantially white.
Claim 11
Dependent Claim
17 words
Process according to claim 9 wherein the substrate of substantially white color has a pale green tint.
Claim 12
Dependent Claim
26 words
Process according to claim 8 wherein said multicolor image is projected upon said first panchromatic type film and said ortho type film through selected yellow filters.
Claim 13
Dependent Claim
48 words
Process according to claim 2 wherein said first areas of said composite separation screen are magenta and said second areas of said composite separation screen are cyan and said multi-color image is projected upon said first panchromatic type film and said ortho type film through selected yellow filters.
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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) | 1979-02-23 | 1979-08-25 | 1980-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-02-23 | 1983-08-25 | 1984-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-02-23 | 1987-08-25 | 1988-02-24 | $7700.00 | Window Closed / Lapsed |