Process for producing a photolithographic printing plate
Abstract
Abstract IN A PROCESS FOR PRODUCING A PHOTOLITHOGRAPHIC PRINTING PLATE WHICH COMPRISES FORMING BY THE DIFFUSION TRANSFER PROCESS A REVERSAL SILVER IMAGE OF AN ORIGINAL IMAGE ON HYDROPHILIC SURFACE PORTION OF A CELLULOSE ORGANIC ACID ESTER SHEET HAVING A HYDROPHILIC SURFACE PORTION CONTAINING A SILVER HALIDE DEVELOPING NUCLEUS SUBSTANCE USED IN THE DIFFUSION TRANSFER PROCESS AND REMOVING THE HYDROPHILIC SURFACE PORTION HAVING SAID SILVER IMAGE TO EXPOSE AN OLEOPHALIC SURFACE OF SAID CELLULOSE ORGANIC ACID ESTER SHEET, THE IMPROVEMENT WHICH COMPRISES REMOVING SAID HYDROPHALIC SURFACE PORTION HAVING SAID SILVER IMAGE WITH AN AQUEOUS ETCHING SOLUTION CONTAINING A PEROXODISULFATE IS DISCLOSED.
Inventors
- 👤 Y Mukaida
- 👤 M Tsuboi
- 👤 F Shinozaki
- 👤 T Ikeda
Bibliographic Details
Claims Analysis
Total Claims: 0References 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) | 1977-06-03 | 1977-12-03 | 1978-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-03 | 1981-12-03 | 1982-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-03 | 1985-12-03 | 1986-06-04 | $7700.00 | Window Closed / Lapsed |