US3241971A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic silver halide emulsions
Assignee: Eastman Kodak Co
•
Filing: 1963-08-19
•
Granted: 1966-03-22
•
Expires: 1983-08-19
Abstract
No abstract record available.
Inventors
- 👤 Theodore J Kitze
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:53
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/49
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
A LIGHT-DEVELOPABLE, DIRECT-PRINT, RADIATION-SENSITIVE EMULSION COMPRISING SILVER HALIDE GRAINS HAVING AN AVERAGE SIZE OF ABOUT .1 TO 10 MICRONS, A PREDOMINANT AMOUNT OF THE SAID RADIATION SENSITIVITY BEING INTERNAL TO SAID GRAINS, A HYDROPHILIC COLLOID, ABOUT .1 TO 50 MOLE PERCENT BASED ON SAID SILVER HALIDE OF A MERCAPTAN HALOGEN ACCEPTOR HAVING AT LEAST ONE MERCAPTO GROUP ATTACHED TO A HETEROCYCLIC NUCLEUS HAVING AT LEAST ONE HETERO-NITROGEN ATOM, ABOUT .5 TO 120 MOLE PERCENT BASED ON SAID SILVER HALIDE OF A CUPRIC SALT, ABOUT .1 TO 50 MOLE PERCENT BASED ON SAID SILVER HALIDE OF A MERCAPTAN HALOGEN ACCEPTOR HAVING AT LEAST ONE MERCAPTO GROUP ATTACHED TO AN ARYL RADICAL,AND ABOUT .1 TO 50 MOLE PERCENT BASED ON SAID SILVER HALIDE OF A WATER-SOLUBLE IODIDE.
Claim 2
Dependent Claim
53 words
A LIGHT-DEVELOPABLE, DIRECT-PRINT, RADIATION-SENSITIVE GELATINO-SILVER HALIDE EMULSION COMPRISING SILVER HALIDE GRAINS HAVING AN AVERAGE SIZE OF ABOUT .1 TO 10 MICRONS, A PREDOMINANT AMOUNT OF THE SAID RADIATION SENSITIVITY BEING INTERNAL TO SAID GRAINS, ABOUT .1 TO 50 MOLE PERCENT BASED ON SILVER HALIDE OF A SUBSTITUTED THIOUREA HALOGEN ACCEPTOR HAVING THE FORMULA
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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) | 1969-03-21 | 1969-09-20 | 1970-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-21 | 1973-09-20 | 1974-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-21 | 1977-09-20 | 1978-03-22 | $7700.00 | Window Closed / Lapsed |