Yellow-forming coupler compounds and color photographic elements containing same
Abstract
Abstract NOVEL YELLOW-FORMING COUPLER COMPOUNDS, REPRESENTED BY THE FORMULA 1-((2-X,Y-PHENYL)-NH-CO-CH2-CO-),3-(R''-CO-NH-),4-(R-O-)BENZENE WHEREIN X REPRESENTS A HALOGEN ATOM, A LOWER ALKOXYL GROUP, A DIALKYLAMINO GROUP OR AN ARYLOXY GROUP; Y REPRESENTS A HYDROGEN ATOM, A HALOGEN ATOM, A TRIFLUOROMETHYL GROUP A CYANO GROUP, AN ALKYL GROUP HAVING LESS THAN 8 CARBON ATOMS, AN ALKOXYL GROUP, AN ARYLOXY GROUP, AN ACYL GROUP, A CARBAMYL GROUP, AN ACYLAMINO GROUP, A SULFOAMINO GROUP, A SULFOAMOYL GROUP, A CARBOALKOXYL GROUP, OR AN AMINO GROUP; R REPRESENTS AN ALKYL GROUP HAVING 1 TO 5 CARBON ATOMS; AND -COR'' REPRESENTS AN ACYL GROUP HAVING 9 TO 28 CARBON ATOMS, AND METHODS OF THEIR PREPARATION ARE DISCLOSED. COLOR PHOTOGRAPHIC LIGHT-SENSITIVE ELEMETNS CONTAINING THESE COMPOUNDS ARE ALSO DISCLOSED.
Inventors
- 👤 Makoto Yoshida
- 👤 Momotoshi Tsuda
- 👤 Yasushi Oishi
- 👤 Kiyoshi Nakazyo
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) | 1975-08-22 | 1976-02-21 | 1976-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-22 | 1980-02-21 | 1980-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-22 | 1984-02-21 | 1984-08-22 | $7700.00 | Window Closed / Lapsed |