US2922336A
Expired / Lapsed
US
⏱️ 0.0 years remaining
X-ray image intensifying and viewing device
Assignee: US Philips Corp
•
Filing: 1954-08-26
•
Granted: 1960-01-26
•
Expires: 1974-08-26
Abstract
No abstract record available.
Inventors
- 👤 Pieter Martinus Van Alphen
- 👤 Wal Johannes Van Der
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:20
CPC Classifications
B; B68; B68C; B68C3/00; G; G02; G02B; G02B27/00; G02B27/0081; G02B27/02; G02B27/022; G02B27/023; H; H01; H01J; H01J31/00; H01J31/08; H01J31/50; 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)
US545743A
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US1281047A
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GB387544A
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US2110324A
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US2170967A
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US2364652A
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US2496404A
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US2401224A
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US2550698A
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US2433674A
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US2631244A
Cited
US2673492A
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US2648776A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-25 | 1963-07-27 | 1964-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-25 | 1967-07-27 | 1968-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-25 | 1971-07-27 | 1972-01-26 | $7700.00 | Window Closed / Lapsed |