Patent US3166998A successfully refreshed from Google Patents.
US3166998A
Expired / Lapsed
US
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Photographic dodging method and apparatus
Assignee: Watson Electronics and Engineering Co Inc
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Filing: 1959-11-19
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Granted: 1965-01-26
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Expires: 1979-11-19
Abstract
No abstract record available.
Inventors
- 👤 Alfred J Watson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:41
CPC Classifications
G; G03; G03C; G03C5/00; G03C5/02; Y; Y10; Y10S; Y10S430/00; Y10S430/145
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
A PHOTOGRAPHIC PRINTING METHOD COMPRISING EXCITING A FLUORESCENT SURFACE TO PRODUCE ACTINIC LIGHT, DIRECTING INFRARED LIGHT UNIFORMYL THROUGH A TRANSPARENCY UPON SAID SURFACE TO QUENCH SAID SURFACE SELECTIVELY TO FORM A LUMINOUS IMAGE, AND SIMULTANEOUSLY DIRECTING UNQUENCHED ACTINIC LIGHT FROM SAID FLUORESCENT SURFACE THROUGH SAID TRANSPARENCY AND FORMING AN IMAGE OF SAID SURFACE ON A PHOTOSENSITIVE EMULSION SURFACE TO EXPOSE THE SAME.
Claim 2
Dependent Claim
62 words
A PHOTOGRAPHIC PRINTING METHOD COMPRISING EXCITING A FLUORESCENT SURFACE TO PRODUCE ACTINIC LIGHT, DIRECTING INFRARED LIGHT UNIFORMYL THROUGH A TRANSPARENCY UPON SAID SURFACE TO QUENCH SAID SURFACE SELECTIVELY TO FORM A LUMINOUS IMAGE, AND SIMULTANEOUSLY DIRECTING UNQUENCHED ACTINIC LIGHT FROM SAID FLUORESCENT SURFACE THROUGH SAID TRANSPARENCY AND FORMING AN IMAGE OF SAID SURFACE ON A PHOTOSENSITIVE EMULSION SURFACE TO EXPOSE THE SAME.
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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) | 1968-01-26 | 1968-07-27 | 1969-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-01-26 | 1972-07-27 | 1973-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-01-26 | 1976-07-27 | 1977-01-26 | $7700.00 | Window Closed / Lapsed |