Patent US2997587A successfully refreshed from Google Patents.
Patent US2865753A successfully refreshed from Google Patents.
US2865753A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic emulsions containing a styrene-butadiene latex and photographic paper made therewith
Assignee: Eastman Kodak Co
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Filing: 1955-12-14
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Granted: 1958-12-23
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Expires: 1975-12-14
Abstract
No abstract record available.
Inventors
- 👤 Kearney P Griffin
- 👤 William H Griggs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:35
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/04; G03C1/053
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
40 words
A COMPOSITION OF MATTER COMPRISING A GELATIN-SILVER HALIDE PHOTOGRAPHIC EMULSION IN WHICH HAS BEEN INCORPORATED A STYRENE-BUTADIENE LATEX RESULTING FROM THE EMULSION POLYMERIZATION OF STYRENE AND BUTADIENE IN THE PROPORTIONS OF 55-65% OF THE FORMER AND 45-35% OF THE LATTER.
Claim 2
Dependent Claim
40 words
A COMPOSITION OF MATTER COMPRISING A GELATIN-SILVER HALIDE PHOTOGRAPHIC EMULSION IN WHICH HAS BEEN INCORPORATED A STYRENE-BUTADIENE LATEX RESULTING FROM THE EMULSION POLYMERIZATION OF STYRENE AND BUTADIENE IN THE PROPORTIONS OF 55-65% OF THE FORMER AND 45-35% OF THE LATTER.
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) | 1961-12-22 | 1962-06-23 | 1962-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-22 | 1966-06-23 | 1966-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-22 | 1970-06-23 | 1970-12-23 | $7700.00 | Window Closed / Lapsed |