Patent US3241435A successfully refreshed from Google Patents.
US3241435A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic color printing apparatus
Assignee: Logetronics Inc
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Filing: 1963-03-01
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Granted: 1966-03-22
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Expires: 1983-03-01
Abstract
No abstract record available.
Inventors
- 👤 Dwin R Craig
- 👤 Felix P Tolosa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:23
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/72; G03B27/73; G03B27/735
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
PHOTOGRAPHIC PRINTING APPARATUS FOR AN ENLARGER HAVING AN EASEL, A HEAD SUPPORTING A SOURCE FOR DIRECTING LIGHT ON SAID EASEL, A LENS IN THE PATH OF SAID LIGHT BETWEEN SAID SOURCE AND EASEL, AND A NEGATIVE CARRIER IN SAID PATH BETWEEN SAID SOURCE AND LENS, COMPRISING MEANS SUPPORTING A PLURALITY OF SUBTRACTIVE FILTERS BETWEEN SAID LENS AND EASEL, MEANS FOR SHIFTING EACH OF SAID FILTERS INDIVIDUALLY INTO AND FROM SAID PATH, A PLURALITY OF PHOTORESPONSIVE TRANSDUCERS IN SAID PATH BEYOND SAID EASEL EACH HAVING A COLOR RESPONSE CHARACTERISTIC WHICH CORRESPONDS WITH ONE COLOR SENSITIVE LAYER OF A MULTICOLOR PRINTING ELEMENT, AND CIRCUIT MEANS INTERCONNECTING EACH PHOTORESPONSIVE TRANSDUCER WITH ONE OF SAID SHIFTING MEANS, SAID SUBTRACTIVE FILTERS BEING YELLOW, MAGENTA, AND CAYN RESPECTIVELY AND SAID PHOTORESPONSIVE TRANSDUCERS CONTROLLING THE SHIFTING OF SAID SUBTRACTIVE FILTERS BEING SENSITIVE TO BLUE, GREEN AND MAGENTA LIGHT COMPONENTS RESPECTIVELY.
Claim 2
Dependent Claim
143 words
PHOTOGRAPHIC PRINTING APPARATUS FOR AN ENLARGER HAVING AN EASEL, A HEAD SUPPORTING A SOURCE FOR DIRECTING LIGHT ON SAID EASEL, A LENS IN THE PATH OF SAID LIGHT BETWEEN SAID SOURCE AND EASEL, AND A NEGATIVE CARRIER IN SAID PATH BETWEEN SAID SOURCE AND LENS, COMPRISING MEANS SUPPORTING A PLURALITY OF SUBTRACTIVE FILTERS BETWEEN SAID LENS AND EASEL, MEANS FOR SHIFTING EACH OF SAID FILTERS INDIVIDUALLY INTO AND FROM SAID PATH, A PLURALITY OF PHOTORESPONSIVE TRANSDUCERS IN SAID PATH BEYOND SAID EASEL EACH HAVING A COLOR RESPONSE CHARACTERISTIC WHICH CORRESPONDS WITH ONE COLOR SENSITIVE LAYER OF A MULTICOLOR PRINTING ELEMENT, AND CIRCUIT MEANS INTERCONNECTING EACH PHOTORESPONSIVE TRANSDUCER WITH ONE OF SAID SHIFTING MEANS, SAID SUBTRACTIVE FILTERS BEING YELLOW, MAGENTA, AND CAYN RESPECTIVELY AND SAID PHOTORESPONSIVE TRANSDUCERS CONTROLLING THE SHIFTING OF SAID SUBTRACTIVE FILTERS BEING SENSITIVE TO BLUE, GREEN AND MAGENTA LIGHT COMPONENTS RESPECTIVELY.
References Cited (Backward Citations)
GB817277A
Cited
US3062096A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-21 | 1969-09-20 | 1970-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-21 | 1973-09-20 | 1974-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-21 | 1977-09-20 | 1978-03-22 | $7700.00 | Window Closed / Lapsed |