US3140182A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-ionized polymethine sensitizing dyes
Assignee: Eastman Kodak Co
•
Filing: 1963-06-11
•
Granted: 1964-07-07
•
Expires: 1983-06-11
Abstract
No abstract record available.
Inventors
- 👤 Donald W Heseltine
- 👤 Leslie G S Brooker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:23
CPC Classifications
C; C09; C09B; C09B23/00; C09B23/0091; C09B23/02; C09B23/04; C09B23/06; C09B23/08; C09B23/083; C09B23/10; C09B23/105; C09B23/107; C09B23/12
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
24 words
A LIGHT-SENSITIVE PHOTOGRAPHIC EMULSION COMPRISING A HYDROPHILIC COLLOID, LIGHT-SENSITIVE SILVER HALIDE AND A NON-IONIZED DYE SELECTED FROM THOSE REPRESENTED BY THE FOLLOWING GENERAL FORMULAS:
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-07-07 | 1968-01-06 | 1968-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-07 | 1972-01-06 | 1972-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-07 | 1976-01-06 | 1976-07-07 | $7700.00 | Window Closed / Lapsed |