US3293033A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for controlling explosure in a photographic color printer
Assignee: Pako Corp
•
Filing: 1960-01-18
•
Granted: 1966-12-20
•
Expires: 1980-01-18
Abstract
No abstract record available.
Inventors
- 👤 Ralph B Maddock
- 👤 Robert E Barbour
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:29
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/72; G03B27/73; G03B27/735
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
THE METHOD OF EXPOSING A PHOTOGRAPHIC MULTICOLOR SENSITIZED MATERIAL FROM A COLOR IMAGE COMPRISING FIRST DIRECTING A WIDE BAND WHITE PRINTING LIGHT THROUGH AN IMAGE TO EXPOSE ALL EMULSIONS OF THE SENSITIZED MATERIAL UNTIL THE EXPOSURE TO AT LEAST ONE OF THE THREE PRIMARY COLORS IS COMPLETED, WHILE SIMULTANEOUSLY SMAPLING THE PRINTING LIGHT REACHING THE SENSITIZED MATERIAL WITH THREE PHOTOELECTRIC MEANS EACH RESPONSIVE TO ONE OF THE NARROW BAND PRIMARY COLORS, THEN CHANGING THE PRINTING LIGHT FROM A WIDE BAND WHILE LIGHT TO A NARROW BAND COLORED LIGHT TO COMPLETE THE EXPOSURE TO A COLOR REQUIRING ADDITIONAL EXPOSURE AND SIMULTANEOUSLY MODIFYING THE SAMPLING MEANS TO COMPENSATE FOR THE CHANGE IN THE EFFECTIVE EMULSION SENSITIVITY OF THE SENSITIZED MATERIAL WHICH OCCURS WITH A CHANGE IN THE BAND WIDTH OF THE EXPOSING LIGHT, THEN CHANGING THE PRINTING LIGHT TO ANOTHER NARROW BAND COLOR REQUIRED TO COMPLETE AN EXPOSURE NOT PREVIOUSLY COMPLETED.
Claim 2
Independent Claim
149 words
THE METHOD OF EXPOSING A PHOTOGRAPHIC MULTICOLOR SENSITIZED MATERIAL FROM A COLOR IMAGE COMPRISING FIRST DIRECTING A WIDE BAND WHITE PRINTING LIGHT THROUGH AN IMAGE TO EXPOSE ALL EMULSIONS OF THE SENSITIZED MATERIAL UNTIL THE EXPOSURE TO AT LEAST ONE OF THE THREE PRIMARY COLORS IS COMPLETED, WHILE SIMULTANEOUSLY SMAPLING THE PRINTING LIGHT REACHING THE SENSITIZED MATERIAL WITH THREE PHOTOELECTRIC MEANS EACH RESPONSIVE TO ONE OF THE NARROW BAND PRIMARY COLORS, THEN CHANGING THE PRINTING LIGHT FROM A WIDE BAND WHILE LIGHT TO A NARROW BAND COLORED LIGHT TO COMPLETE THE EXPOSURE TO A COLOR REQUIRING ADDITIONAL EXPOSURE AND SIMULTANEOUSLY MODIFYING THE SAMPLING MEANS TO COMPENSATE FOR THE CHANGE IN THE EFFECTIVE EMULSION SENSITIVITY OF THE SENSITIZED MATERIAL WHICH OCCURS WITH A CHANGE IN THE BAND WIDTH OF THE EXPOSING LIGHT, THEN CHANGING THE PRINTING LIGHT TO ANOTHER NARROW BAND COLOR REQUIRED TO COMPLETE AN EXPOSURE NOT PREVIOUSLY COMPLETED.
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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) | 1969-12-19 | 1970-06-20 | 1970-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-19 | 1974-06-20 | 1974-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-19 | 1978-06-20 | 1978-12-20 | $7700.00 | Window Closed / Lapsed |