US2997389A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Exposure control in color printing
Assignee: Eastman Kodak Co
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Filing: 1957-04-12
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Granted: 1961-08-22
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Expires: 1977-04-12
Abstract
No abstract record available.
Inventors
- 👤 Joseph L Boon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:19
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/72; G03B27/73
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
158 words
IN THE METHOD OF MAKING COLOR PRINTS FROM A COLOR TRANSPARENCY ONTO A PHOTOGRAPHIC COLOR PRINT MATERIAL HAVING SENSITIVITY IN THE RED, GREEN AND BLUE REGIONS OF THE SPECTRUM IN DISCRETE AND DIFFERENT AREAS OF SAID COLOR PRINT MATERIAL, COMPRISING UNIFORMLY ILLUMINATING SAID COLOR TRANSPARENCY WITH RADIATION FROM A "WHILE" LIGHT ILLUMINATING SOURCE HAVING RED, GREEN AND BLUE COMPONENTS AND A COMPONENT IN AT LEAST ONE OF THE REGIONS OF THE SPECTRUM: (A) THE YELLOW REGION OF THE SPECTRUM AND (B) THAT PORTION OF THE SPECTRUM LYING BETWEEN ABOUT 465 AND 490 MILLIMICRONS, FOCUSING AND PRINTING SAID COLOR TRANSPARENCY ONTO SAID COLOR PRINT MATERIAL WITH RADIATION TRANSMITTED BY SAID COLOR TRANSPARENCY, AND SUBSTANTIALLY TERMINATING THE RED, GREEN AND BLUE EXPOSURES OF SAID PHOTOGRAPHIC COLOR PRINT MATERIAL BY INTERPOSING, BETWEEN SAID "WHILE" LIGHT ILLUMINATING SOURCE AND SAID PHOTOGRAPHIC COLOR PRINT MATERIAL, SUBTRACTIVELY-COLORED FILTERS ABSORBING, RESPECTIVELY, SAID RED, GREEN AND BLUE COMPONENTS OF SAID ILLUMINATING SOURCE, THE STEP OF INTERPOSING
Claim 2
Dependent Claim
158 words
IN THE METHOD OF MAKING COLOR PRINTS FROM A COLOR TRANSPARENCY ONTO A PHOTOGRAPHIC COLOR PRINT MATERIAL HAVING SENSITIVITY IN THE RED, GREEN AND BLUE REGIONS OF THE SPECTRUM IN DISCRETE AND DIFFERENT AREAS OF SAID COLOR PRINT MATERIAL, COMPRISING UNIFORMLY ILLUMINATING SAID COLOR TRANSPARENCY WITH RADIATION FROM A "WHILE" LIGHT ILLUMINATING SOURCE HAVING RED, GREEN AND BLUE COMPONENTS AND A COMPONENT IN AT LEAST ONE OF THE REGIONS OF THE SPECTRUM: (A) THE YELLOW REGION OF THE SPECTRUM AND (B) THAT PORTION OF THE SPECTRUM LYING BETWEEN ABOUT 465 AND 490 MILLIMICRONS, FOCUSING AND PRINTING SAID COLOR TRANSPARENCY ONTO SAID COLOR PRINT MATERIAL WITH RADIATION TRANSMITTED BY SAID COLOR TRANSPARENCY, AND SUBSTANTIALLY TERMINATING THE RED, GREEN AND BLUE EXPOSURES OF SAID PHOTOGRAPHIC COLOR PRINT MATERIAL BY INTERPOSING, BETWEEN SAID "WHILE" LIGHT ILLUMINATING SOURCE AND SAID PHOTOGRAPHIC COLOR PRINT MATERIAL, SUBTRACTIVELY-COLORED FILTERS ABSORBING, RESPECTIVELY, SAID RED, GREEN AND BLUE COMPONENTS OF SAID ILLUMINATING SOURCE, THE STEP OF INTERPOSING
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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) | 1964-08-21 | 1965-02-20 | 1965-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-21 | 1969-02-20 | 1969-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-21 | 1973-02-20 | 1973-08-22 | $7700.00 | Window Closed / Lapsed |