Patent US2442287A successfully refreshed from Google Patents.
US2442287A
Expired / Lapsed
US
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Means for reproducing X-ray images
Assignee: Pye Electronic Products Ltd
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Filing: 1944-11-15
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Granted: 1948-05-25
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Expires: 1964-11-15
Abstract
No abstract record available.
Inventors
- 👤 Edwards Baden John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:08
CPC Classifications
G; G02; G02B; G02B27/00; G02B27/02; G02B27/022; G02B27/023
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB315362A
Cited
US2083995A
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US2021907A
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US2100259A
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US2219113A
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US2234806A
Cited
GB511796A
Cited
US2319712A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-05-25 | 1951-11-24 | 1952-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-05-25 | 1955-11-24 | 1956-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-05-25 | 1959-11-24 | 1960-05-25 | $7700.00 | Window Closed / Lapsed |