US3131252A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic previewer for the graphic arts
Assignee: Hazeltine Research Inc
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Filing: 1961-06-05
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Granted: 1964-04-28
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Expires: 1981-06-05
Abstract
No abstract record available.
Inventors
- 👤 Richard J Farber
- 👤 John Karl M St
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:04
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/46; H04N1/56; H04N1/60; H04N1/6011
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
AN ELECTRONIC PREVIEWER FOR SIMULATING A COLOR IMAGE CORRESPONDING TO A PRINTED PROOF WHICH MAY BE OBTAINED FROM A COLOR-SEPARATION IMAGE COMPRISING: MEANS FOR DERIVING FROM A COLOR-SEPARATION IMAGE AN ELECTRICAL SIGNAL REPRESENTATIVE OF TRANSMISSION DENSITY OF SAID SEPARATION IMAGE; MEANS RESPONSIVE TO SAID SIGNAL FOR MODIFYING IT IN ACCORDANCE WITH PREDETERMINED TRANSFER CHARACTERISTICS ASSOCIATED WITH THE ACTUAL MAKING OF A PRINTING PLATE FROM SAID SEPARATION IMAGE AND WITH THE DEPOSITING OF INK BY SAID PLATE ON A LIGHT-REFLECTIVE MEDIUM; AND MEANS INCLUDING AN IMAGE-REPRODUCING DEVICE RESPONSIVE TO SAID MODIFIED SIGNAL FOR CONVERTING IT TO LIGHT VARIATIONS FOR PRODUCING A RESULTANT COLOR IMAGE SIMULATING THAT WHICH WOULD BE PRODUCED BY SAID PRINTING PLATE.
Claim 2
Dependent Claim
113 words
AN ELECTRONIC PREVIEWER FOR SIMULATING A COLOR IMAGE CORRESPONDING TO A PRINTED PROOF WHICH MAY BE OBTAINED FROM A COLOR-SEPARATION IMAGE COMPRISING: MEANS FOR DERIVING FROM A COLOR-SEPARATION IMAGE AN ELECTRICAL SIGNAL REPRESENTATIVE OF TRANSMISSION DENSITY OF SAID SEPARATION IMAGE; MEANS RESPONSIVE TO SAID SIGNAL FOR MODIFYING IT IN ACCORDANCE WITH PREDETERMINED TRANSFER CHARACTERISTICS ASSOCIATED WITH THE ACTUAL MAKING OF A PRINTING PLATE FROM SAID SEPARATION IMAGE AND WITH THE DEPOSITING OF INK BY SAID PLATE ON A LIGHT-REFLECTIVE MEDIUM; AND MEANS INCLUDING AN IMAGE-REPRODUCING DEVICE RESPONSIVE TO SAID MODIFIED SIGNAL FOR CONVERTING IT TO LIGHT VARIATIONS FOR PRODUCING A RESULTANT COLOR IMAGE SIMULATING THAT WHICH WOULD BE PRODUCED BY SAID PRINTING PLATE.
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) | 1967-04-28 | 1967-10-28 | 1968-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-28 | 1971-10-28 | 1972-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-28 | 1975-10-28 | 1976-04-28 | $7700.00 | Window Closed / Lapsed |