US3413122A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for forming images and elements therefor
Assignee: EIDP Inc
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Filing: 1963-07-01
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Granted: 1968-11-26
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Expires: 1983-07-01
Abstract
No abstract record available.
Inventors
- 👤 Blake Ralph Kingsley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:45
CPC Classifications
G; G03; G03C; G03C8/00; G03C8/02; G03C8/04; C; C08; C08F; C08F10/00; G03C1/00; G03C1/005; G03C1/46; G03C5/00; G03C5/26; G03C5/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
A PROCESS WHICH COMPRISES (1) SUBJECTING TO AN IMAGEWISE EXPOSURE AND THEREBY FORMING A LATENT IMAGE IN THE OUTER UNFOGGED LIGHTSENSITIVE SILVER HALIDE EMULSION LAYER OF A PHOTOGRAPHIC ELEMENT HAVING, ON A SUPPORT, A CONTIGUOUS INNER EMULSION LAYER COMPRISING UNFOGGED INTERNAL SILVER HALIDE GRAINS AND OF SUCH SENSITIVITY THAT SAID IMAGEWISE EXPOSURE RESULTS IN DEVELOPMENT OF LESS THAN ONE-TENTH OF THE AVAILABLE SILVER HALIDE IN THE INNER LAYER, SAID INNER UNFOGGED LAYER BEING ONE WHICH AT A COATING WEIGHT OF 540 MG./SQ. FOOT OF SILVER WILL PRODUCE AN OPTICAL DENSITY OF LESS THAN 0.4 IN UNEXPOSED AREAS WHEN DEVELOPED FOR 5 MINUTES AT 65*F. IN THE FOLLOWING DEVELOPER:
Claim 2
Dependent Claim
108 words
A PROCESS WHICH COMPRISES (1) SUBJECTING TO AN IMAGEWISE EXPOSURE AND THEREBY FORMING A LATENT IMAGE IN THE OUTER UNFOGGED LIGHTSENSITIVE SILVER HALIDE EMULSION LAYER OF A PHOTOGRAPHIC ELEMENT HAVING, ON A SUPPORT, A CONTIGUOUS INNER EMULSION LAYER COMPRISING UNFOGGED INTERNAL SILVER HALIDE GRAINS AND OF SUCH SENSITIVITY THAT SAID IMAGEWISE EXPOSURE RESULTS IN DEVELOPMENT OF LESS THAN ONE-TENTH OF THE AVAILABLE SILVER HALIDE IN THE INNER LAYER, SAID INNER UNFOGGED LAYER BEING ONE WHICH AT A COATING WEIGHT OF 540 MG./SQ. FOOT OF SILVER WILL PRODUCE AN OPTICAL DENSITY OF LESS THAN 0.4 IN UNEXPOSED AREAS WHEN DEVELOPED FOR 5 MINUTES AT 65*F. IN THE FOLLOWING DEVELOPER:
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-26 | 1972-05-27 | 1972-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-26 | 1976-05-27 | 1976-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-26 | 1980-05-27 | 1980-11-26 | $7700.00 | Window Closed / Lapsed |