US3081167A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic products and processes using metallic chelates
Assignee: Polaroid Corp
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Filing: 1959-01-26
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Granted: 1963-03-12
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Expires: 1979-01-26
Abstract
No abstract record available.
Inventors
- 👤 Arthur B Goulston
- 👤 Myron S Simon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:14
CPC Classifications
G; G03; G03C; G03C8/00; G03C8/02; G03C8/08; G03C8/10; G03C8/12; G03C8/14; G03C8/16; C; C09; C09B; C09B31/00; C09B31/02; G03C8/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
IN A PROCESS OF FORMING A PHOTOGRAPHIC IMAGE, THE STEPS WHICH COMPRISE DEVELOPING A LATENT IMAGE CONTAINED IN AN EXPOSED SILVER HALIDE EMULSION WITH A PROCESSING SOLUTION CONTAINING A DYE, SELECTED FROM THE GROUP CONSISTING OF MONO- AND DISAZO DYES, CHARACTERIZED IN THAT SAID DYE CONTAINS, SUBSTITUTED AT POSITIONS ORTHO AND ORTHO'' TO AN AZO LINK, A GROUP SELECTED FROM THE GROUP CONSISTING OF HYDROXYL AND CARBOXYL GROUPS, IMMOBILIZING SAID DYE IN EXPOSED AREAS, PROVIDING IN SAID EMULSION A PREDETERMINED DISTRIBUTION OF MOBILE DYE AND TRANSFERRING AT LEAST PART OF SAID DISTRIBUTION OF SAID MOBILE DYE, BY IMBIBITION, FROM SAID EMULSION TO AN IMAGE-RECEIVING ELEMENT IN SUPERPOSED RELATIONSHIP WITH SAID EMULSION, CONTACTING AT LEAST PART OF SAID TRANSFERRED DYE WITH AT LEAST ONE CHELATE SELECTED FROM THE GROUP CONSISTING OF CHELATES WITHIN THE FORMULA:
Claim 2
Dependent Claim
134 words
IN A PROCESS OF FORMING A PHOTOGRAPHIC IMAGE, THE STEPS WHICH COMPRISE DEVELOPING A LATENT IMAGE CONTAINED IN AN EXPOSED SILVER HALIDE EMULSION WITH A PROCESSING SOLUTION CONTAINING A DYE, SELECTED FROM THE GROUP CONSISTING OF MONO- AND DISAZO DYES, CHARACTERIZED IN THAT SAID DYE CONTAINS, SUBSTITUTED AT POSITIONS ORTHO AND ORTHO'' TO AN AZO LINK, A GROUP SELECTED FROM THE GROUP CONSISTING OF HYDROXYL AND CARBOXYL GROUPS, IMMOBILIZING SAID DYE IN EXPOSED AREAS, PROVIDING IN SAID EMULSION A PREDETERMINED DISTRIBUTION OF MOBILE DYE AND TRANSFERRING AT LEAST PART OF SAID DISTRIBUTION OF SAID MOBILE DYE, BY IMBIBITION, FROM SAID EMULSION TO AN IMAGE-RECEIVING ELEMENT IN SUPERPOSED RELATIONSHIP WITH SAID EMULSION, CONTACTING AT LEAST PART OF SAID TRANSFERRED DYE WITH AT LEAST ONE CHELATE SELECTED FROM THE GROUP CONSISTING OF CHELATES WITHIN THE FORMULA:
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) | 1966-03-11 | 1966-09-10 | 1967-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-11 | 1970-09-10 | 1971-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-11 | 1974-09-10 | 1975-03-12 | $7700.00 | Window Closed / Lapsed |