US2508213A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic process for reproducing multicolor images
Assignee: Individual
•
Filing: 1950-02-21
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Granted: 1950-05-16
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Expires: 1970-02-21
Abstract
No abstract record available.
Inventors
- 👤 Joseph A Ball
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:31
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
IN A FIVE-COMPONENT SUBTRACTIVE COLOR REPRODUCTION PROCESS, THE STEPS WHICH COMPRISE EXPOSING FIVE LIGHT-SENSITIVE PHOTOGRAPHIC LAYERS TO PRODUCE FIVE COLOR SEPARATION NEGATIVES THROUGH LIGHT FILTERS WHICH WILL PRODUCE RESPONSE PEAKS IN THE RANGES 425 TO 445, 610 TO 650, 472 TO 492, 525 TO 545, AND 564 TO 584 MILLIMICRONS, RESPECTIVELY, DEVELOPING THE LATENT IMAGES SO PRODUCED, CONVERTING THE RESULTING NEGATIVE IMAGES TO FIVE COLORED POSITIVE IMAGES WHICH HAVE PREDOMINANT ABSORPTION IN THE RANGES 435 MILLIMICRONS AND SHORTER, 600 MILLIMICRONS AND LONGER, AND ABSORPTIONS CENTERING IN THE RANGES 460 TO 485, 505 TO 530, AND 550 TO 575 MILLIMICRONS, RESPECTIVELY, AND SUPERPOSING SAID POSITIVE COLORED IMAGES IN REGISTER.
Claim 2
Dependent Claim
108 words
IN A FIVE-COMPONENT SUBTRACTIVE COLOR REPRODUCTION PROCESS, THE STEPS WHICH COMPRISE EXPOSING FIVE LIGHT-SENSITIVE PHOTOGRAPHIC LAYERS TO PRODUCE FIVE COLOR SEPARATION NEGATIVES THROUGH LIGHT FILTERS WHICH WILL PRODUCE RESPONSE PEAKS IN THE RANGES 425 TO 445, 610 TO 650, 472 TO 492, 525 TO 545, AND 564 TO 584 MILLIMICRONS, RESPECTIVELY, DEVELOPING THE LATENT IMAGES SO PRODUCED, CONVERTING THE RESULTING NEGATIVE IMAGES TO FIVE COLORED POSITIVE IMAGES WHICH HAVE PREDOMINANT ABSORPTION IN THE RANGES 435 MILLIMICRONS AND SHORTER, 600 MILLIMICRONS AND LONGER, AND ABSORPTIONS CENTERING IN THE RANGES 460 TO 485, 505 TO 530, AND 550 TO 575 MILLIMICRONS, RESPECTIVELY, AND SUPERPOSING SAID POSITIVE COLORED IMAGES IN REGISTER.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-05-15 | 1953-11-14 | 1954-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-15 | 1957-11-14 | 1958-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-15 | 1961-11-14 | 1962-05-16 | $7700.00 | Window Closed / Lapsed |