Photographic dry copying material
Abstract
Abstract PHOTOGRAPHIC COPIES ARE PRODUCED BY IMAGE-WISE EXPOSING A LIGHT-SENSITIVE LAYER WHICH CONTAINS A LIGHT-SENSITIVE PHOTO-OXIDIZING COMPOUND AND AN IMAGE-PRODUCING PYRAZOLIN-5-ONE CAPABLE OF BEING TRANSFERRED TO AN IMAGERECEIVING LAYER, THE IMAGE-PRODUCING COMPOUND IN THE EXPOSED AREAS BEING CONVERTED INTO A NON-TRANSFERABLE COMPOUND BY REACTION WITH THE LIGHT-SENSITIVE COMPOUND, BRINGING THE EXPOSED LAYER INTO CONTACT WITH AN IMAGERECEIVING LAYER WHICH CONTAINS COMPOUNDS WHICH REACT WITH THE IMAGE-PRODUCING COMPOUND TO FORM COLORED COMPOUNDS AND HEATING OF THE LAYERS WHILE IN CONTACT WITH EACH OTHER TO A TEMPERATURE OF BETWEEN 80 AND 200* C. AT WHICH THE IMAGE-PRODUCING COMPOUND IS TRANSFERRED FROM THE UNEXPOSED AREAS OF THE LIGHT-SENSITIVE LAYER TO THE IMAGE-RECEIVING LAYER.
Inventors
- 👤 A Poot
- 👤 Besauw J Van
- 👤 A Koenig
- 👤 H Kampfer
Bibliographic Details
Claims Analysis
Total Claims: 0References 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) | 1976-04-16 | 1976-10-16 | 1977-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-16 | 1980-10-16 | 1981-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-16 | 1984-10-16 | 1985-04-17 | $7700.00 | Window Closed / Lapsed |