US3033984A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for increasing the energy of x-rays
Assignee: United States Steel Corp
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Filing: 1959-02-17
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Granted: 1962-05-08
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Expires: 1979-02-17
Abstract
No abstract record available.
Inventors
- 👤 Robert M Fisher
- 👤 Jerome E Holliday
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:18
CPC Classifications
G; G01; G01T; G01T1/00; G01T1/16; G01T1/28; G01N; G01N23/00; G01N23/20; G01N23/207; G01N23/2076; H; H01; H01J; H01J43/00; H01J43/04; H01J43/06; H01J43/18; H01J43/20; H01J43/22; H01J2235/00; H01J2235/08; H01J2235/088; H01J35/00; H01J35/02; H01J35/04; H01J35/08; H01J35/112; H01J35/116
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) | 1965-05-07 | 1965-11-06 | 1966-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-07 | 1969-11-06 | 1970-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-07 | 1973-11-06 | 1974-05-08 | $7700.00 | Window Closed / Lapsed |