Patent US3124458A successfully refreshed from Google Patents.
US3124458A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Direct positive photographic materials
Assignee: —
•
Filing: —
•
Granted: 1964-03-10
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Expires: 1981-03-10
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 20:44
CPC Classifications
C; C07; C07D; C07D471/00; C07D471/12; C07D471/14; G; G03; G03C; G03C1/00; G03C1/005; G03C1/485
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
26 words
A DIRECT POSITIVE PHOTOGRAPHIC ELEMENT COMPRISING A FOGGED GELATINO SILVER CHLORIDE EMULSION CONTAININGD A DESENSITISING COMPOUND SELECTED FROM THE CLASS CONSISTING OF COMPOUNDS OF THE FORMULA:
Claim 2
Dependent Claim
26 words
A DIRECT POSITIVE PHOTOGRAPHIC ELEMENT COMPRISING A FOGGED GELATINO SILVER CHLORIDE EMULSION CONTAININGD A DESENSITISING COMPOUND SELECTED FROM THE CLASS CONSISTING OF COMPOUNDS OF THE FORMULA:
References Cited (Backward Citations)
US2965485A
Cited
US3035917A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-03-10 | 1967-09-09 | 1968-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-10 | 1971-09-09 | 1972-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-10 | 1975-09-09 | 1976-03-10 | $7700.00 | Window Closed / Lapsed |