US3355984A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic color printing apparatus
Assignee: Individual
•
Filing: 1966-08-01
•
Granted: 1967-12-05
•
Expires: 1986-08-01
Abstract
No abstract record available.
Inventors
- 👤 Puschmann Werner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:14
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/72; G03B27/73; G03B27/735
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
FOR USE IN A PHOTOGRAPHIC COLOR PRINTING APPARATUS HAVING PHOTOELECTRIC MEANS RESPONSIVE TO A PLURALITY OF PARTIAL ILLUMINATIONS OF DIVERSE COLORS; ILLUMINATION CONTROL MEANS FOR CONTROLLING SAID ILLUMINATIONS, COMPRISING, IN COMBINATION, A COLOR CORRECTION NETWORK HAVING A PLURALITY OF PARALLEL BRANCHES CORRESPONDING IN NUMBER TO THAT OF SAID COLORS, EACH OF SAID BRANCHES INCLUDING AN ADJUSTABLE IMPEDANCE; AND A COPY DENSITY COMPENSATION NETWORK CONNECTED TO SAID COLOR CORRECTION NETWORK AND INCLUDING A PLURALITY OF ADJUSTABLE IMPEDANCES THAT ARE RESPECTIVELY JOINTLY ADJUSTABLE WITH THE ASSOCIATED COLOR CORRECTION IMPEDANCES, WHEREBY SAID IMPEDANCES MAY BE ADJUSTED TO VARY THE INDIVIDUAL PARTIAL COLOR ILLUMINATIONS WHILE MAINTAINING THE TOTAL COPY DENSITY SUBSTANTIALLY CONSTANT.
Claim 2
Dependent Claim
108 words
FOR USE IN A PHOTOGRAPHIC COLOR PRINTING APPARATUS HAVING PHOTOELECTRIC MEANS RESPONSIVE TO A PLURALITY OF PARTIAL ILLUMINATIONS OF DIVERSE COLORS; ILLUMINATION CONTROL MEANS FOR CONTROLLING SAID ILLUMINATIONS, COMPRISING, IN COMBINATION, A COLOR CORRECTION NETWORK HAVING A PLURALITY OF PARALLEL BRANCHES CORRESPONDING IN NUMBER TO THAT OF SAID COLORS, EACH OF SAID BRANCHES INCLUDING AN ADJUSTABLE IMPEDANCE; AND A COPY DENSITY COMPENSATION NETWORK CONNECTED TO SAID COLOR CORRECTION NETWORK AND INCLUDING A PLURALITY OF ADJUSTABLE IMPEDANCES THAT ARE RESPECTIVELY JOINTLY ADJUSTABLE WITH THE ASSOCIATED COLOR CORRECTION IMPEDANCES, WHEREBY SAID IMPEDANCES MAY BE ADJUSTED TO VARY THE INDIVIDUAL PARTIAL COLOR ILLUMINATIONS WHILE MAINTAINING THE TOTAL COPY DENSITY SUBSTANTIALLY CONSTANT.
References Cited (Backward Citations)
US2269161A
Cited
US2438303A
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US2518947A
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US2627786A
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US2499039A
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US2565399A
Cited
US2742837A
Cited
US3029691A
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US3100419A
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US3220304A
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US3051069A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-04 | 1971-06-05 | 1971-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-04 | 1975-06-05 | 1975-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-04 | 1979-06-05 | 1979-12-05 | $7700.00 | Window Closed / Lapsed |