Patent US3408199A successfully refreshed from Google Patents.
US3408199A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic material with improved silver covering power
Assignee: Agfa Gevaert AG
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Filing: 1965-06-21
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Granted: 1968-10-29
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Expires: 1985-06-21
Abstract
No abstract record available.
Inventors
- 👤 Saleck Wilhelm
- 👤 Dinges Karl
- 👤 Muller Erwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:54
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/04; G03C1/053; C; C08; C08F; C08F20/00; C08F20/02; C08F20/52; C08F20/54; C08F20/58
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
37 words
A LIGHT-SENSITIVE MATERIAL COMPRISING AT LEAST ONE LIGHT SENSITIVE SILVER HALIDE EMULSION LAYER HAVING IMPROVED COVERING POWER OF DEVELOPED SILVER WHICH CONTAINS A POLYMERIC PRODUCT WITH AT LEAST 15 MOL PERCENT OF UNITS OF THE FOLLOWING FORMULA:
Claim 2
Dependent Claim
37 words
A LIGHT-SENSITIVE MATERIAL COMPRISING AT LEAST ONE LIGHT SENSITIVE SILVER HALIDE EMULSION LAYER HAVING IMPROVED COVERING POWER OF DEVELOPED SILVER WHICH CONTAINS A POLYMERIC PRODUCT WITH AT LEAST 15 MOL PERCENT OF UNITS OF THE FOLLOWING FORMULA:
References Cited (Backward Citations)
US2533166A
Cited
US2593888A
Cited
US3069263A
Cited
US3178295A
Cited
US3178296A
Cited
US3341332A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-29 | 1972-04-29 | 1972-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-29 | 1976-04-29 | 1976-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-29 | 1980-04-29 | 1980-10-29 | $7700.00 | Window Closed / Lapsed |