US3178997A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Image-processing system
Assignee: Technicolor Corp
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Filing: 1961-05-02
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Granted: 1965-04-20
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Expires: 1981-05-02
Abstract
No abstract record available.
Inventors
- 👤 Donald H Kelly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:14
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/72; G02; G02B; G02B27/00; G02B27/42; G02B27/46
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
A PHOTOGRAPHIC PRINTER FOR PRODUCING A MODIFIED IMAGE OF A TRANSPARENCY, SAID PRINTER COMPRISING A SORCE OF LIGHT, MEANS FOR DIRECTING LIGHT FROM SAID SOURCE THROUGH SAID TRANSPARENCY, A LENS POSITIONED ON THE SIDE OF SAID TRANSPARENCY AWAY FROM SAID LIGHT SOURCE FOR FORMING AN OPTICAL IMAGE OF SAID TRANSPARENCY, A FILM HAVING THE PROPERTY THAT EXPOSURE TO LIGHT OF A FIRST SPECTRAL RANGE INCREASES THE DENSITY OF THE LATENT IMAGE ON SAID FILM AND EXPOSURE TO LIGHT OF A SECOND SPECTRAL RANGE DECREASES THE DENSITY OF SAID LATENT IMAGE, SAID FILM BEING POSITIONED TO RECEIVE LIGHT FROM SAID LENS AND IN A PLANE DISPLACED FROM THE PLANE OF SAID OPTICAL IMAGE, AND MEANS FOR CONVERTING DIFFERENT REGIONS OF LIGHT WHICH FALL ON SAID FILM AND WHICH CORRESPOND TO DIFFERENT PARTS OF SAID IMAGE TO LIGHT IN SAID FIRST AND SECOND SPECTRAL RANGES.
Claim 2
Dependent Claim
143 words
A PHOTOGRAPHIC PRINTER FOR PRODUCING A MODIFIED IMAGE OF A TRANSPARENCY, SAID PRINTER COMPRISING A SORCE OF LIGHT, MEANS FOR DIRECTING LIGHT FROM SAID SOURCE THROUGH SAID TRANSPARENCY, A LENS POSITIONED ON THE SIDE OF SAID TRANSPARENCY AWAY FROM SAID LIGHT SOURCE FOR FORMING AN OPTICAL IMAGE OF SAID TRANSPARENCY, A FILM HAVING THE PROPERTY THAT EXPOSURE TO LIGHT OF A FIRST SPECTRAL RANGE INCREASES THE DENSITY OF THE LATENT IMAGE ON SAID FILM AND EXPOSURE TO LIGHT OF A SECOND SPECTRAL RANGE DECREASES THE DENSITY OF SAID LATENT IMAGE, SAID FILM BEING POSITIONED TO RECEIVE LIGHT FROM SAID LENS AND IN A PLANE DISPLACED FROM THE PLANE OF SAID OPTICAL IMAGE, AND MEANS FOR CONVERTING DIFFERENT REGIONS OF LIGHT WHICH FALL ON SAID FILM AND WHICH CORRESPOND TO DIFFERENT PARTS OF SAID IMAGE TO LIGHT IN SAID FIRST AND SECOND SPECTRAL RANGES.
References Cited (Backward Citations)
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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) | 1968-04-19 | 1968-10-19 | 1969-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-19 | 1972-10-19 | 1973-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-19 | 1976-10-19 | 1977-04-20 | $7700.00 | Window Closed / Lapsed |