Patent US3577272A successfully refreshed from Google Patents.
US3577272A
Expired / Lapsed
US
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Method of making x-ray sensitive electroradiographic elements
Assignee: Eastman Kodak Co
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Filing: 1968-11-12
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Granted: 1971-05-04
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Expires: 1988-11-12
Abstract
Abstract ELECTRORADIOGRAPHIC ELEMENTS CONTAINING, AS A PHOTOCONDUCTOR, TETRAGONAL LEAD MONOXIDE PREPARED BY HEATING ORTHORHOMBIC LEAD MONOXIDE IN WATER AND SUBJECTING THE MATERIAL TO A POST HEAT TREATMENT ARE SENSITIVE TO X-RADIATION AND USEFUL IN ELECTRORADIOGRAPHY.
Inventors
- 👤 Raymond F Reithel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:41
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/08; G03G5/087
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-03 | 1974-11-02 | 1975-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-03 | 1978-11-02 | 1979-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-03 | 1982-11-02 | 1983-05-04 | $7700.00 | Window Closed / Lapsed |