US3372030A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of shortening the processing time of color photography
Assignee: Pavelle Corp
•
Filing: 1962-12-14
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Granted: 1968-03-05
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Expires: 1982-12-14
Abstract
No abstract record available.
Inventors
- 👤 Jacobson Kurt Israel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:50
CPC Classifications
G; G03; G03C; G03C5/00; G03C5/26; G03C5/29; G03C5/305; G03C1/00; G03C1/005; G03C1/06; G03C1/30; G03C7/00; G03C7/30; G03C7/388; G03C7/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
173 words
A METHOD OF SHORTENING THE PROCESSING TIME OF COLOR PHOTOGRAPHIC SENSITIVE MATERIAL WHICH COMPRISES, PROVIDING A MULTI-LAYER EMULSION-COATED PHOTOGRAPHIC MATERIAL IN WHICH EACH LAYER INCORPORATES CLOSESLY SPACED FINELY DISPERSED COUPLER ANC SILVER HALIDE PARTICLES IN A PHOTOGRAPHIC DISPERSION MEDIUM, EACH EMULSION LAYER BEING OF THE ORDER OF 2 MICRONS IN THICKNESS, THE RATIO OF SILVER TO DISPERSION MEDIUM IS SUBSTANTIALLY 1:1, THE RATIO OF COUPLER TO DISPERSION MEDIUM BEING SUBSTANTIALLY 1:3; EXPOSING THE MATERIAL TO FORM A LATENT IMAGE; CONVERTING THE LATENT IMAGE TO A VISIBLE IMAGE BY SUBJECTING THE EXPOSED MATERIAL FOR A BRIEF PERIOD AT A TEMPERATURE OF BETWEEN ABOUT 20*C. AND 35*C. TO THE ACTION OF A HIGHLY ALKALIE AQUEOUS SOLUTION OF A DEVELOPER SELECTED FROM THE GROUP CONSISTING OF NIDIETHYL-P-PHENYLENE DIAMINE AND SUBSTITUTED, MORE SOLUBLE DERIVATIVES THEREOF; IMMEDIATELY IMMERSING THE DEVELOPED MATERIAL FOR A BRIEF PERIOD IN A BLEACH-FIX BATH COMPRISING AN ACID SOLUTION OF A SILVER HALIDE SOLVENT AND AN ACID-STABLE FERRIC SALT OF AN ALKYLENE AMINE POLYACETIC ACID AND THEN WASHING AND DRYING THE THUS PROCESSED MATERIAL.
Claim 2
Independent Claim
173 words
A METHOD OF SHORTENING THE PROCESSING TIME OF COLOR PHOTOGRAPHIC SENSITIVE MATERIAL WHICH COMPRISES, PROVIDING A MULTI-LAYER EMULSION-COATED PHOTOGRAPHIC MATERIAL IN WHICH EACH LAYER INCORPORATES CLOSESLY SPACED FINELY DISPERSED COUPLER ANC SILVER HALIDE PARTICLES IN A PHOTOGRAPHIC DISPERSION MEDIUM, EACH EMULSION LAYER BEING OF THE ORDER OF 2 MICRONS IN THICKNESS, THE RATIO OF SILVER TO DISPERSION MEDIUM IS SUBSTANTIALLY 1:1, THE RATIO OF COUPLER TO DISPERSION MEDIUM BEING SUBSTANTIALLY 1:3; EXPOSING THE MATERIAL TO FORM A LATENT IMAGE; CONVERTING THE LATENT IMAGE TO A VISIBLE IMAGE BY SUBJECTING THE EXPOSED MATERIAL FOR A BRIEF PERIOD AT A TEMPERATURE OF BETWEEN ABOUT 20*C. AND 35*C. TO THE ACTION OF A HIGHLY ALKALIE AQUEOUS SOLUTION OF A DEVELOPER SELECTED FROM THE GROUP CONSISTING OF NIDIETHYL-P-PHENYLENE DIAMINE AND SUBSTITUTED, MORE SOLUBLE DERIVATIVES THEREOF; IMMEDIATELY IMMERSING THE DEVELOPED MATERIAL FOR A BRIEF PERIOD IN A BLEACH-FIX BATH COMPRISING AN ACID SOLUTION OF A SILVER HALIDE SOLVENT AND AN ACID-STABLE FERRIC SALT OF AN ALKYLENE AMINE POLYACETIC ACID AND THEN WASHING AND DRYING THE THUS PROCESSED MATERIAL.
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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) | 1971-03-05 | 1971-09-04 | 1972-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-05 | 1975-09-04 | 1976-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-05 | 1979-09-04 | 1980-03-05 | $7700.00 | Window Closed / Lapsed |