US3033682A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiation-sensitive emulsions, elements, and processes for making same
Assignee: EIDP Inc
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Filing: 1959-11-12
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Granted: 1962-05-08
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Expires: 1979-11-12
Abstract
No abstract record available.
Inventors
- 👤 Hunt Heman Dowd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:29
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/49
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A LIGHT-DEVELOPABLE, DIRECT-WRITING, LIGHT-SENSITIVE, WATER-PERMEABLE, COLLOID-SILVER HALIDE EMULSION CONTAINING (1) 0.5 TO 120 MOLE PERCENT OF A STANNOUS SALT AND 0.1 TO 25 MOLE PERCENT OF A PLUMBOUS SALT PER MOLE OF SILVER, AND (2) AT LEAST ONE WATER-SOLUBLE HALIDE TAKEN FROM THE GROUP CONSISTING OF LITHIUM, SODIUM, POTASSIUM, CALCIUM, MAGNESIUM AND AMMONIUM CHLORIDE, BROMIDE AND IODIDE IN AN AMOUNT SUFFICIENT TO PROVIDE AN EXCESS OF HALIDE IONS OVER THAT NECESSARY INITIALLY TO PRECIPITATE ALL OF THE SILVER AS SILVER HALIDE.
Claim 2
Dependent Claim
81 words
A LIGHT-DEVELOPABLE, DIRECT-WRITING, LIGHT-SENSITIVE, WATER-PERMEABLE, COLLOID-SILVER HALIDE EMULSION CONTAINING (1) 0.5 TO 120 MOLE PERCENT OF A STANNOUS SALT AND 0.1 TO 25 MOLE PERCENT OF A PLUMBOUS SALT PER MOLE OF SILVER, AND (2) AT LEAST ONE WATER-SOLUBLE HALIDE TAKEN FROM THE GROUP CONSISTING OF LITHIUM, SODIUM, POTASSIUM, CALCIUM, MAGNESIUM AND AMMONIUM CHLORIDE, BROMIDE AND IODIDE IN AN AMOUNT SUFFICIENT TO PROVIDE AN EXCESS OF HALIDE IONS OVER THAT NECESSARY INITIALLY TO PRECIPITATE ALL OF THE SILVER AS SILVER HALIDE.
References Cited (Backward Citations)
US2487850A
Cited
US2839405A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-05-07 | 1965-11-06 | 1966-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-07 | 1969-11-06 | 1970-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-07 | 1973-11-06 | 1974-05-08 | $7700.00 | Window Closed / Lapsed |