Patent US3400265A successfully refreshed from Google Patents.
US3400265A
Expired / Lapsed
US
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X-ray spectrometry apparatus having both interchangeable specimens and radiation sources
Assignee: Centre de Recherches Metallurgiques CRM ASBL
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Filing: 1965-03-30
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Granted: 1968-09-03
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Expires: 1985-03-30
Abstract
No abstract record available.
Inventors
- 👤 Houbart Yvan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:50
CPC Classifications
G; G01; G01N; G01N23/00; G01N23/22; G01N23/225; G01N23/223; H; H01; H01J; H01J35/00; G01N2223/00; G01N2223/07; G01N2223/076
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3073951A
Cited
US3099743A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-03 | 1972-03-04 | 1972-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-03 | 1976-03-04 | 1976-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-03 | 1980-03-04 | 1980-09-03 | $7700.00 | Window Closed / Lapsed |