US3515873A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for analyzing and calibrating radiation beams of x-ray generators
Assignee: University of Kentucky Research Foundation
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Filing: 1968-01-11
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Granted: 1970-06-02
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Expires: 1988-01-11
Abstract
No abstract record available.
Inventors
- 👤 Edward M Higgins
- 👤 Harold D Rosenbaum
- 👤 Waldo D De Vore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:45
CPC Classifications
G; G01; G01T; G01T1/00; G01T1/16; G01T1/24; G01T1/247; G01T7/00; G01T7/005; H; H05; H05G; H05G1/00; H05G1/08; H05G1/26
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) | 1973-06-01 | 1973-12-01 | 1974-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-01 | 1977-12-01 | 1978-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-01 | 1981-12-01 | 1982-06-02 | $7700.00 | Window Closed / Lapsed |