US3671240A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic transfer elements and processes for preparing and using them
Assignee: Eastman Kodak Co
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Filing: 1970-06-10
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Granted: 1972-06-20
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Expires: 1990-06-10
Abstract
Abstract PHOTOSENSITIVE ELEMENTS FOR USE IN IMAGE TRANSFER PROESSES CONTAIN IN THE LIGHT SENSITIVE LAYER A FLOCCULATED PIGMENT WHICH FORMS A DISCONTINOUS PHASE UNIFROMLY DISTRIBUTED IN A CONTINUOUS POLYMER LAYER. THE LIGHT SENSITIVE LAYER CAN BE PREPARED BY MIXING AND COATING A SOLUTION OF THE LIGHT SENSITIVE POLYMER AND A PIGMENT WITH A SURFACTANT TO FLOCCULATE THE PIGMENT. THE RESULTANT ELEMENT CAN BE USED IN PHOTOTHERMOGRAPHIC IMAGE TRANSFER PROCESSES TO GIVE IMAGES HAVING INCREASED TRANSFER DENSITY.
Inventors
- 👤 Eugene P Gramza
- 👤 David D Schreiber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:35
CPC Classifications
G; G03; G03F; G03F1/00; G03F1/54; G03F1/56; G03F7/00; G03F7/26; G03F7/34; G03F7/346
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-20 | 1975-12-20 | 1976-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-20 | 1979-12-20 | 1980-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-20 | 1983-12-20 | 1984-06-20 | $7700.00 | Window Closed / Lapsed |