US2790085A
Expired / Lapsed
US
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Device for making photographs of X-ray images by means of an image amplifier
Assignee: US Philips Corp
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Filing: 1954-07-19
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Granted: 1957-04-23
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Expires: 1974-07-19
Abstract
No abstract record available.
Inventors
- 👤 Fransen Jacobus
- 👤 Teves Marten Cornelis
- 👤 Tol Taeke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:25
CPC Classifications
G; G03; G03B; G03B42/00; G03B42/02; G03B42/021; G03B42/023; H; H01; H01J; H01J31/00; H01J31/08; H01J31/50; H04; H04N; H04N23/00; H04N23/30; H01J2231/00; H01J2231/50; H01J2231/50005; H01J2231/5001; H01J2231/50031; H01J2231/50036
Claims Analysis
Total Claims: 0
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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) | 1960-04-22 | 1960-10-22 | 1961-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-22 | 1964-10-22 | 1965-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-22 | 1968-10-22 | 1969-04-23 | $7700.00 | Window Closed / Lapsed |