Patent US3038803A successfully refreshed from Google Patents.
US3038803A
Expired / Lapsed
US
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Photosensitive material
Assignee: Keuffel and Esser Co
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Filing: 1958-02-07
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Granted: 1962-06-12
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Expires: 1978-02-07
Abstract
No abstract record available.
Inventors
- 👤 Kosar Jaromir
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:03
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/64
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
A LIGHT SENSITIVE SOLUTION INCLUDING A CONCOATED WITH A LIGHT SENSITIZING SOLUTION INCLUDING A COMPLEX FERRIC SALT CONTAINING IN ADDITION TO FERRIC IONS AT LEAST ONE CATION SELECTED FROM THE GROUP CONSISTING OF NH2+NA+, AND K+ AND AN ANION SELECTED FROM THE GROUP CONSISTING OF SULPHATE AND ORGANIC CARBOXYLATES AND A SILVER SALT SELECTED FROM THE GROUP CONSISTING OF SILVER CARBONATE, SILVER CITRATE AND SILVER TARTRATE.
Claim 2
Dependent Claim
66 words
A LIGHT SENSITIVE SOLUTION INCLUDING A CONCOATED WITH A LIGHT SENSITIZING SOLUTION INCLUDING A COMPLEX FERRIC SALT CONTAINING IN ADDITION TO FERRIC IONS AT LEAST ONE CATION SELECTED FROM THE GROUP CONSISTING OF NH2+NA+, AND K+ AND AN ANION SELECTED FROM THE GROUP CONSISTING OF SULPHATE AND ORGANIC CARBOXYLATES AND A SILVER SALT SELECTED FROM THE GROUP CONSISTING OF SILVER CARBONATE, SILVER CITRATE AND SILVER TARTRATE.
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) | 1965-06-11 | 1965-12-11 | 1966-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-11 | 1969-12-11 | 1970-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-11 | 1973-12-11 | 1974-06-12 | $7700.00 | Window Closed / Lapsed |