US3795519A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic materials containing mordants
Assignee: Fujifilm Holdings Corp
•
Filing: 1972-07-24
•
Granted: 1974-03-05
•
Expires: 1992-07-24
Abstract
Abstract A PHOTOGRAPHIC MATERIAL COMPRISING A SUPPORT HAVING THEREON A HYDROPHILIC COLLOID LAYER CONTAINING A POLYMER OF AN ADDITION PRODUCT OF BISACRYLAMIDE AND A SECONDARY DIAMINE OR THE QUATERNARY SALT THEREOF, AND A WATER-SOLUBLE ACIDIC DYE IS DISCLOSED.
Inventors
- 👤 T Miyazako
- 👤 T Tajima
- 👤 T Nishina
- 👤 N Tsuji
- 👤 H Kato
- 👤 T Kokubu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:21
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/825; G03C1/835
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1977-03-04 | 1977-09-03 | 1978-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-04 | 1981-09-03 | 1982-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-04 | 1985-09-03 | 1986-03-05 | $7700.00 | Window Closed / Lapsed |